If you have a drawer full of sockets it can take a while to locate the right one. Instructables user pat42586 shows how to make a simple wooden organiser for your sockets out of a board and two dowels.
You can purchase similar organisers at a hardware store, but the DIY version is much cheaper.
For those who prefer to keep their sockets in a drawer, place the organiser face-up in the drawer instead of hanging it on the wall.
A Better Socket Organiser [Instructables]