My most important script has been to remap CapsLock as a kind of custom Meta key, that transforms (when pressed) the Space into Return, hjkl into arrows, io into PgUp/PgDn, and 1-9 into function keys. Now I have a 60% keyboard that takes 0 space on my desk. And I am reaaaally happy with this setup.

[that, plus LinkHint plugin for Firefox, and i3 for WM is my way to go for a better life]