If you are on Linux and still using the CapsLock key for it intended use, you may need to re-think your life choices. I have recently done just that and have remapped this near worthless key to Ctrl and it has been heavenly (apart from still wanting to press Ctrl of course).
If you are on Ubuntu you can remap it by editing the
file. Find the line that looks like this
XKBOPTIONS="" and make it looke like
XKBOPTIONS="ctrl:swapcaps". This will swap the role of ctrl and
caps lock. If you just want to kill the idea of CapsLock all together then you
should use the
ctrl:nocaps option instead.