Think about this.. Seriously.
Provide yourself with enough storage space for anything you need in labeled drawers/bins/shelves etc.. but only allow yourself 4 square feet of working space. If after a period of 1 week you haven't used something it goes into storage cause you obviously haven't needed it recently.
Have another 4 square foot area separate from your main one that the stuff you pull out of storage to use on a regular basis (more than once a week) goes, test equipment tools, or other references. Allow no other space, and be diligent about marking and cataloging things you put into storage. No butts.