The Caps Lock key is the most annoying key on your keyboard. It’s of no use whatsoever and it's always right at your fingertips, waiting for you to accidentally click on it. Therefore one of the greatest favors any computer user can do to himself, is to disable the Caps Lock key. All the major operating systems allow you to do it, even Windows...
Clearly the winner here, if you want to do it from command line:
$ xmodmap -e "remove lock = Caps_Lock"
Just type it in to try out and then place into your .bashrc file to make the setting permanent.
Although a real Mac user would find it more intuitive to drag the Caps Lock key to trashcan, this time they have to resort to simple list boxes:
And in Windows the same thing is done in the typical Windows way.
You modify the registry and restart your computer.