If you live in London – or in any city flat where the word “bijou” appears in the estate agent listing as a badge of honour rather than a cautionary flag – you will be intimately familiar with the particular spatial cruelty of the understorey cupboard. Its absence, more precisely. The average London one-bedroom flat operates on an economy of space so ruthless that every cubic centimetre has been spoken for several times over: the airing cupboard became a wardrobe, the wardrobe now moonlights as a secondary kitchen, and somewhere at the back of a shelf that should logically hold pasta, there is a solitary bottle of multi-surface spray lying on its side like a man who has given up entirely.
The cruel irony of small-flat living is that compact spaces require every bit as much cleaning as larger ones – arguably more, given that surfaces are closer together, ventilation is often limited, and grime has nowhere to hide. Yet the very smallness that generates the cleaning challenge also swallows the storage space traditionally used to address it. It is a domestic Catch-22 that would have Joseph Heller reaching for a mop, if only there were somewhere to store one.
The good news is that cleaning an entire flat with a genuinely minimal product footprint is not just achievable – it is, in several meaningful ways, a better system than the sprawling cupboard-full-of-bottles approach most of us have drifted into by default.
Rethink What You Actually Need
The Great Cupboard Audit
Before buying anything new or rearranging anything old, it is worth spending five minutes with whatever cleaning products you currently own, lined up somewhere you can actually see them all at once. For most people, this exercise produces a quietly damning picture: three variations of bathroom cleaner, two half-empty multi-surface sprays with different brand names performing identical jobs, a limescale remover used once in 2022, and a floor cleaner bought in optimism for a mop that was subsequently lost behind something.
The cleaning industry is, like most consumer industries, exceptionally good at convincing us that every surface and situation requires its own dedicated product. The kitchen spray is subtly different from the bathroom spray, which cannot possibly be the same as the glass cleaner, which is an entirely different proposition from the anti-bacterial wipe. In practice, beneath the varied branding and bottle shapes, most of these products are performing versions of the same basic chemical tasks: lifting grease, killing bacteria, and dissolving mineral deposits.
Once that pattern becomes visible, a leaner kit stops feeling like a compromise and starts looking like the more sensible option. A small flat cleaned consistently with three well-chosen products will be just as clean as one attacked half-heartedly with twelve, and the reclaimed space is a meaningful bonus in its own right.
The Power Couple You Already Know About
White Vinegar and Bicarbonate of Soda
Regular readers of this blog will have a sense of where this is going, and yes – white vinegar and bicarbonate of soda are making another appearance. Their presence here is entirely earned. Between them, these two ingredients can handle the cleaning demands of an entire flat, and both take up so little space that storage barely registers as a consideration.
White vinegar diluted with water – roughly one part vinegar to three parts water, kept in a small refillable spray bottle – works as an effective daily multi-surface cleaner across worktops, tiles, glass, taps, and most hard floors. Its mild acidity cuts through grease reliably, neutralises odours rather than masking them with fragrance, and tackles limescale with particular efficiency. In London, where water hardness makes mineral build-up around taps and shower fittings a near-universal experience, that last quality alone makes it worth keeping permanently within reach.
Bicarbonate of soda handles jobs that need abrasive action alongside chemical cleaning: baked-on hob residue, stained sinks, grouting that has seen better days, and anything where a gentle physical scrub is part of the solution. A standard cardboard box takes up almost no shelf space and lasts months at typical usage rates.
Together, they cover the kitchen, the bathroom, the floors, and the windows. The spray bottle refills indefinitely from a large bottle of vinegar. Without exaggeration, this is the closest thing domestic cleaning has to a cheat code.
Building a Minimal Kit That Works Hard
Five Things That Can Clean a Whole Flat
Beyond the vinegar-and-bicarb foundation, a small number of additional products complete a genuinely comprehensive minimal kit. A good concentrated multi-purpose cleaner – the kind where a single capful diluted in water refills a spray bottle several times over – earns its storage space many times over. Concentrates are the quietly brilliant workhorses of the minimal-kit approach: one compact bottle replaces six or eight full-size equivalents, produces considerably less packaging waste, and occupies a corner of a cupboard rather than demanding dedicated shelf real estate.
Washing-up liquid deserves recognition as one of the most versatile cleaning products in existence. It degreases kitchen surfaces, pre-treats laundry stains, functions as a hand-wash for delicate fabrics, cleans the shower screen when diluted, and lifts scuff marks from painted walls with a damp cloth. It is already on every kitchen sink and earns its place there several times over.
After those, the list becomes satisfyingly short. A toilet cleaner is non-negotiable in London’s hard-water conditions. A single good microfibre cloth – rinsed between rooms and washed regularly – handles wiping duties across the whole flat without specialist alternatives. One flat-head mop with a washable pad manages the floors.
That entire kit fits inside a tote bag on the back of a door. The cleaning problem was never really a product problem.
Where to Keep It When There Is Nowhere to Keep Anything
Storage Strategies for Genuinely Tight Spaces
Even a minimal kit needs a home, and in a small flat that requires thinking vertically rather than horizontally.
The back of a door is one of the most chronically underused surfaces in any flat. An over-door pocket organiser – the sort more commonly used for shoes or stationery – holds spray bottles, cloths, small containers, and a box of bicarb with ease, adds zero footprint to the room, and transforms a surface that was doing nothing into genuinely functional storage. Kitchen doors, bathroom doors, and hallway doors all work equally well. The installation takes thirty seconds and a single hook.
Under the kitchen sink, a tension rod fitted horizontally across the cabinet interior creates an instant hanging rail for spray bottles. The trigger handles hook over the rod, the bottles hang freely in the space below, and the floor of the cabinet – previously a chaotic tangle of things on their sides – becomes usable again. It costs almost nothing and takes ten minutes, but the organisational effect is disproportionately large.
For longer tools like a mop or a broom, a single adhesive wall hook in the hallway or inside a wardrobe door holds them upright against the wall, using no floor space at all. The instinct to store long-handled items horizontally – on shelves, or flat in corners – uses dramatically more space than storing them vertically, which needs only one hook and a few inches of wall.
The Strategy That Makes All of This Work
Clean as You Go – and Mean It
No amount of clever product consolidation or storage ingenuity will keep a small flat genuinely clean if the cleaning is left to accumulate into a dedicated event. The “block out Saturday morning” model functions tolerably in a larger home where mess distributes across multiple rooms that can be shut off and left for a week without particular consequence. In a flat where the kitchen, the living space, and the bathroom are all visible from wherever you happen to be sitting, that approach tends to produce a specific low-level ambient anxiety that follows you around like an uninvited houseguest.
Clean as you go – briefly and consistently – is not the same as cleaning obsessively, and the distinction matters. It means wiping the hob after cooking rather than before the next time you need it. It means a thirty-second spray-and-wipe of the basin after brushing your teeth in the morning. It means running a damp cloth along the worktop while the kettle boils, because the kettle always takes longer than expected and that time is otherwise wasted entirely.
None of these acts takes more than a minute. None requires getting a cleaning kit out in any meaningful sense – a spray bottle and cloth within reach are sufficient. Collectively, they mean the flat is genuinely clean most of the time, rather than tolerable most of the time with occasional intervals of actual cleanliness following a full Saturday session.
The minimal kit makes clean-as-you-go practical in a way a cluttered cupboard never quite manages. When three products live in one obvious place, reaching for them takes no effort at all.
When a Minimal Kit Meets Its Limits
Some cleaning tasks fall outside what any sensibly minimal kit can handle alone. End-of-tenancy cleans, where a landlord or letting agent will apply genuine professional scrutiny to the results, require a depth and consistency that is difficult to achieve without commercial equipment and products. Extraction fans that have been quietly absorbing kitchen grease for a year, bathroom sealant that has developed mould beneath the surface rather than on it, or limescale build-up that has been left long enough to become almost geological in character – these call for something beyond a vinegar spray and good intentions.
A flat that has been well maintained day-to-day, cleaned consistently with a thoughtful minimal kit, simply arrives at those moments in far better condition than one that has lurched between neglect and intensive recovery sessions. The minimal approach does not lower the bar. It raises the baseline – which is, ultimately, the more useful outcome.