A tip from my recent escapades... If you mount 15mm pipe clips (e.g. http://www.screwfix.com/p/contract-p...k-of-100/11880 ) to the backboard or edge of your bench, they make a handy place to store gravers, beading tool handles, some small files and similar.

My usual way of parking gravers is to stick them in a cork sanding block, but that's more for the ones I'm using at the time.