A lending cupboard depends on people imagining the next person’s turn.

A shared cupboard of tools or books survives on imagination rather than on rules. It works when people return things sharp, clean, and complete because they can picture somebody arriving next week needing it, and it collapses when enough people treat it as a free shop. No amount of enforcement substitutes for that small act of picturing. Arrangements like this are among the cheapest good things a street can have.

If you borrow from a shared store, return it better than you found it. If your area has none, ask two neighbours what they own that sits unused most of the year.