Since most of our time is ruled by the letters on the keyboard be it the computer or the phone, here’s a tid-bit about the frequency of key usage. Mike Knuepfel has used the data [below] from wikipedia to construct a sculptural visualization using a 3D rapid prototyping technique.

So here you have the data set in a sculpture format that gives an idea of the frequency of each letter of the alphabet used in a keyboard.

Itp.nyu.edu