Five pairs instead of twenty: building a sock drawer
Socks are the part of a wardrobe where it is easiest to accumulate twenty random pairs and own none of the right ones. Here is a set that covers everything from trainers to a dinner jacket.

Socks accumulate on their own: a pair from a trip, a pair as a gift, three pairs «just in case». A year later there are twenty in the drawer and nothing to wear — because half of them go with neither the shoes nor each other.
A sock drawer is built by roles, not by quantity. Five roles cover almost everything.
The five pairs that cover everything
A dark graphite pair, mid-height — the base under a suit and under dark trainers. The most useful colour there is: it does not draw attention and never looks accidental.
A thin black pair — for evening shoes and a narrow silhouette. Thickness matters more than colour here: a dense sock creases inside a polished shoe.
A light cotton pair — for summer shoes, pale trousers and anything that needs air.
A dense woollen pair — winter, boots, long walks. Height is what counts: a short one leaves the calf bare, a tall one shows under the trousers.
One «wrong» pair — coloured, patterned, with character. Not for a suit, but for the days when a detail should be noticed.
What you do not need
Socks matched exactly to the shoe — a habit from the 2000s: it turns the leg into a continuation of the boot and almost always looks heavier than it is.
Ten identical white pairs «for every day» — they go grey at the same time and wear out just as fast.
The rule: five considered pairs work better than twenty random ones, because every one of them can be put on without thinking.