Collections for daily life.

One shelf, four kinds of annoyance

The split follows the room the problem happens in, not the product type. A hook that holds a coat is a hallway problem; a cradle that keeps a wet umbrella upright is a car problem. Both are the same idea — give the object a fixed place instead of tidying around it.

Each collection below says what belongs in it and, more usefully, what does not. Read the second part first: it is the one that saves a return.