I refuse to ditch any fabric that is larger than 2" square so I have plastic shoe boxes for each cut size of scraps. Of course they are now overflowing. The 2.5" scraps are left in strips if they are over 10" they can always be joined for a scrappy binding, the rest is cut into squares. Until now I've sorted those into light, med (always subjective) and dark, but will be following this thread with interest for ideas for sorting for specific patterns/projects.