Cleaning blind spots: the areas of the house that everyone forgets

Cleaning blind spots are the places that the weekly routine skips without noticing: the tops of cabinets, skirting boards and corners, the space behind furniture and under beds, handles and switches, the extractor filter, the fridge seal, and window tracks. They don’t get dirty overnight. They get dirty because no one looks at them, and when you finally do, there’s already a layer of dust, grease, or mould that requires serious effort to clean. In this guide, we show where they are, room by room, how to clean each one without dirtying what is already clean, how often to include them, and what list to use for regular cleaning, deep cleaning, or before a move.
In summary
- Blind spots concentrate in three types of places: high areas (tops of cabinets, lamps), low and hidden areas (skirting boards, behind and under furniture), and surfaces that are frequently touched but rarely cleaned (handles, switches, remotes).
- In the kitchen, the extractor and the fridge seal are the two places where neglect is most costly: grease, bad odours, and mould.
- Always clean from top to bottom and finish on the floor, so you don’t dirty what you’ve already cleaned.
- For glass, the squeegee with water and the microfiber cloth performed better in tests than multipurpose detergent.
- A checklist for each room, with weekly, monthly, and biannual tasks, is what prevents these spots from being neglected for months.
Index
- Why certain spots escape cleaning
- The blind spots, room by room
- How to clean without making a mess again
- How often to include each area
- The checklist to ensure no spot is missed
- What we see in Lisbon homes
- When it makes sense to call professionals
- Frequently asked questions
- Sources
Why certain spots escape cleaning
Regular cleaning follows the eye. We clean what we see standing, at eye and hand level: countertops, sinks, the floor in the middle of the room, dining tables. The rest gets left for "when there’s time," and that time rarely comes.
Dust also helps to hide the problem. It’s a mix of particles that come from outside with fabric fibers and residues from carpets, clothes, and furniture, and as it floats in the air, it tends to settle in low-traffic or hard-to-reach places. In other words: dust goes precisely to the spots where we don’t wipe.
There are also three practical reasons that we see repeated in almost every home:
- Difficult access. To reach the top of a wardrobe, you need a step ladder; to clean behind the sofa, you need to move it. Anything that requires moving something tends to be postponed.
- Objects in the way. Full countertops, shelves with decorations, floors with boxes. Each object is an excuse to clean around instead of underneath.
- Lack of method. Without a fixed order, each cleaning starts and ends in different places, and the less obvious areas systematically get left until the end, which never happens.
The blind spots, room by room
In a deep clean, the most prominent spots are the tops of cabinets, skirting boards, corners, areas behind furniture and under beds, as well as handles and switches. From there, each room has its own forgotten spots.
Kitchen
It’s the room where blind spots have the most consequences, because dust combines with grease.
- Extractor and filters. The extractor retains grease and debris that, over time, can generate bad odours and fire risks, which is why regular cleaning is recommended. Metal filters can usually be disassembled and washed; check the appliance manual to see if they are dishwasher safe.
- Fridge seal. The door rubber collects crumbs, moisture, and, if left untouched, mould. A weekly wipe with a damp cloth and detergent, and water with vinegar for mould spots on the seal, resolves it before it becomes a problem.
- Tops of high cabinets. In the kitchen, the dust that settles there becomes sticky with steam grease. The longer it stays, the harder it is to remove.
- Handles, switches, and the front of appliances. Touched with hands while cooking, they almost never make it into the routine cleaning.
- Inside the oven and microwave. They aren’t invisible, but they are easy to ignore while the door is closed.
Bathroom
- Silicones and joints. Where there is standing water and little ventilation, joints darken. It’s worth including them in a periodic review: the maintenance calendar we follow as a reference suggests reviewing silicones and signs of moisture in October, before winter.
- Base of the toilet and behind it. The cloth wipes the seat and lid; the base and the floor against the wall are forgotten.
- Extractor grille. Accumulates dust and moisture, and a dirty extractor ventilates worse.
- Inside drawers and shelves. Residues of cosmetics and dust mix and create a film that is hard to remove.
Bedrooms and living room
- Under beds and sofas. The classic spot where dust gathers in clumps.
- Cushions, mattresses, and upholstered headboards. Fabrics retain dust and mites without being seen. Curtains, bedspreads, cushions, and rugs should be washed according to the label instructions, as some fabrics require delicate or dry cleaning. For the mattress, follow the manufacturer's instructions; if it’s foam, this guide on how to clean a memory foam mattress explains the care for that material.
- Blinds and curtains. Blinds retain dust on every slat or fold. Fabric models require special care; those with pleated blinds can find here the steps to clean pleated blinds without damaging them.
- Remotes, keyboards, and table lamps. Frequently touched, rarely cleaned.
- Behind the television and furniture against the wall. Cables are authentic dust collectors.
Entrance, corridors, and high areas
- Skirting boards and corners of the floor. The vacuum passes by; the dust stays against the wall.
- Door frames, tops of doors, and window frames. No one looks up when entering a room.
- Ceiling lights and corners of the ceiling. Cobwebs and dust that only appear when the sunlight hits.
- Ventilation grilles and air conditioning filters. In June, the same calendar recommends checking air conditioning filters when preparing the house for heat.
Windows, balconies, and terraces
In Lisbon, with old houses, sash windows, and balconies facing the street, this is one of the most visible blind spots from the outside. The tracks and rails of the windows gather dust, dirt, and leaves; balconies accumulate dirt from the street and pollution; the glass looks clean until the afternoon sun hits it directly. In January, it’s also advisable to watch for moisture and condensation, which often translates into dark stains on the frames.
!
How to clean without making a mess again
Knowing where the blind spots are is half the job. The other half is the order and the tools.
The right order
- Tidy up first. Remove objects from surfaces and return what is out of place. Cleaning an empty countertop is much quicker than cleaning around twenty jars.
- Start from the top. The rule is to start with the ceiling, lights, and shelves and finish on the floor, so you don’t dirty what has already been cleaned. The dust that falls from the top of the wardrobe will end up on the floor, which you haven’t cleaned yet.
- From the back to the door. In each room, work from the furthest area to the exit.
- Dry before wet. Dust dry (microfiber cloth, duster, vacuum with brush) before using any damp cloth. Wet dust turns into mud in corners.
- Floor at the end. Vacuum first, with the narrow nozzle in skirting boards and corners, and only then wash.
Tools that make a difference
- Microfiber cloths, in different colours for kitchen, bathroom, and other rooms, to avoid transferring dirt from one place to another.
- Vacuum with narrow nozzle and brush, for skirting boards, window tracks, sofas, and under furniture.
- Stable step ladder, never a chair, for the tops of cabinets and lights.
- Old toothbrush or fine brush for joints, tracks, and the fridge seal.
- Squeegee for glass.
Glass and mirrors without streaks
Here are some concrete data. In DECO PROteste tests, the squeegee with water scored 4.3 out of 5 in stain removal, and the squeegee and microfiber cloth with water were the best at maintaining shine. Glass wipes scored 3.9 and glass cleaner spray 3.8, while multipurpose detergent and vinegar scored no more than 2.2. Practical conclusion: for glass, water, squeegee, and microfiber before any generic product.
!
As for products in general, always use what the label indicates for each surface, test first in a discreet area on stone, wood, or delicate fabrics, and do not mix different products. If the idea is to save time without losing quality, it’s worth setting up a smarter cleaning routine, where each task has its day and doesn’t accumulate for the weekend.
How often to include each area
It’s not necessary to clean everything every week. A useful checklist organizes by room the daily, weekly, monthly, and biannual tasks. This is the frequency we propose for the blind spots of a home occupied full-time:
| Area | Suggested Frequency | Note |
|---|---|---|
| Handles, switches, remotes | Weekly | More often if someone is ill at home |
| Fridge seal | Weekly | Damp cloth and detergent |
| Skirting boards and corners | Fortnightly | Vacuum with narrow nozzle |
| Under beds and sofas | Fortnightly to monthly | More often with pets |
| Extractor filters | Monthly | More often if frying frequently |
| Tops of cabinets and doors | Monthly | Before the floor |
| Lights and ventilation grilles | Monthly | With the light off and cool |
| Window tracks and rails | Monthly | Vacuum before washing |
| Bathroom silicones and joints | Review in October and when darkening | Before winter |
| Behind furniture and appliances | Biannual | In deep cleaning |
| Air conditioning filters | Before summer (June) | Follow the appliance manual |
| Curtains, bedspreads, and cushions | Biannual | According to the label |
One caveat: the best plan is the one you can stick to. A perfect calendar that is abandoned after three weeks is worth less than a short list that is always completed.
The checklist to ensure no spot is missed
Blind spots change depending on the type of cleaning. This is the list we recommend for each situation.
Regular cleaning (weekly)
- Dust on all surfaces, including shelves with objects (remove, clean, replace).
- Handles, switches, remotes, and handrails.
- Fridge seal and front of appliances.
- Base and behind the toilet.
- Visible skirting boards and corners of the floor, with narrow nozzle.
- Mirrors and interior glass with streaks.
Deep cleaning (seasonal)
Everything above, plus:
- Tops of cabinets, wardrobes, and doors.
- Ceiling lights and corners of the ceiling.
- Move sofas, beds, and light furniture and clean behind and underneath.
- Extractor filters, inside the oven and microwave.
- Joints and silicones in the bathroom, extractor grille.
- Window tracks, frames, blinds, and curtains.
- Washing bedspreads, cushions, and covers according to the label.
Before a move (entry or exit)
In an empty house, all blind spots are visible. It’s the moment when a landlord or new tenant notices everything.
- Inside all cabinets, drawers, and wardrobes.
- Inside the fridge, oven, microwave, and dishwasher.
- Walls near switches and marks from furniture.
- Floor in places where furniture was, including previously covered skirting boards.
- Balcony, terrace, and storage.
- Glass inside and, when safely accessible, outside.
What we see in Lisbon homes
When we enter a house for the first time, we rarely find obvious dirt. We find dirt accumulated in places where the routine doesn’t reach: the extractor filter with months of grime, the solidified dust on top of kitchen cabinets, the window tracks full of street dirt. It’s not negligence. It’s the natural result of cleaning in a hurry, without method, and always in the same order.
!
That’s why we work with detailed checklists for each type of service. The checklist exists precisely for the blind spots: what is obvious anyone cleans, what is not obvious only gets cleaned if it’s written down. And since the standards are the same regardless of the professional, the house doesn’t depend on the memory of whoever goes there that day.
Whenever possible, we keep the same team in the same house. A fixed team learns where that house accumulates dust, which window gathers the most moisture, which upholstery requires more care. After a few visits, the blind spots cease to exist because they become part of the routine.
For those with a holiday home or a second residence, the problem worsens: a closed house for weeks accumulates dust everywhere, and that’s where regular care makes the most difference.
— Taras
When it makes sense to call professionals
If your home needs more than a quick pass, or if you simply prefer to use the weekend for something else, Cleaning Point takes care of the blind spots for you, with clear checklists, selected and trained professionals, and support in multiple languages.

To keep the house up to date, we have regular professional domestic cleaning. To recover what has been neglected for months, deep cleaning includes tops, corners, and areas behind furniture. If you are moving in or out of a house, move-in and move-out cleaning prepares it for the new occupants. And windows, ovens, upholstery, laundry, and balconies can be added as extras to any visit.
Frequently asked questions
What are the most forgotten spots in house cleaning?
The tops of cabinets, skirting boards and corners, the space behind furniture and under beds, and handles and switches. In the kitchen, the extractor filter and fridge seal are added; in the bathroom, the joints, silicones, and the base of the toilet.
Where should I start cleaning a room?
From the top. Start with the ceiling, lights, and shelves and finish on the floor, so that the dust that falls doesn’t dirty what you’ve already cleaned. Before that, remove objects from surfaces, because cleaning around them is what most leaves spots undone.
What is the best way to clean glass without leaving streaks?
In DECO PROteste tests, the squeegee with water was the most effective method for removing stains, and with a microfiber cloth, it maintained shine best. Multipurpose detergent and vinegar lagged far behind.
How often should I clean the extractor?
Filters should be included in the routine regularly; a monthly cleaning is a good baseline, and if you fry a lot, do it more often. Always follow the manufacturer's instructions regarding disassembly and the product to use.
What should be included in a cleaning before handing over a rented house?
The inside of all cabinets and appliances, skirting boards and the floor where furniture was, marks on the walls, glass, balconies, and storage. In an empty house, all blind spots are visible, so it’s advisable to follow a complete checklist.
Sources
- idealista: Complete house cleaning, all steps in the right order
- idealista: 5 forgotten areas of the house that accumulate a lot of dust
- idealista: Home maintenance calendar throughout the year
- IOL: The places in the kitchen that most of us haven’t cleaned in months
- Tua Casa: 10 places that accumulate the most dirt in the house
- DECO PROteste: How to clean glass and windows without streaks
- e-konomista: Daily and weekly house cleaning checklist


