Dan, I don't want to take the fun out of storing sandpaper :tongue:, but since I switched to Abranet, I keep two 2x3 inch squares on my bench - 400 & 600. I use them over and over until I swap out for a new piece.
On the rare occasion that I need a coarser grit, I tear a strip off the old multi-grit box assortment dispenser from Rockler or Woodcraft which is on the shelf.
The reason I switched to Abranet was because it is amazingly consistent - I got tired of trying to remove that one scratch that came from the odd piece of grit on the sandpaper.
Turn back now ...:biggrin:
Harry