I recently added a small combo disc-belt sander to my workshop and needed a way to keep all of the various grit discs and belts organized. My first thought was to keep all of this in a drawer but that quickly turned out to be inefficient. The solution was a custom designed, wall mounted, organizer which keeps all of these items visible and close at hand.
Interested in building your own? Full color plans available here: https://etsy.me/2MVZP92