I keep scraps in these formats:
2.5" strips
2" strips
1.5" strips
usable triangles
4" squares
3" squares
2.5" squares
and 2" squares of those I really like.
Most anything else that is at least a fat 16th goes into a "Usable/Random Pieces" box or gets tossed.
Yeah, after 30+ years, one has to make SOME choices, LOL!
Jan in VA