I have a very small sewing room 9 x 9. I thought about what quilts I like to make for charity and the size of scraps for each one. Strings must be at least 1 1/2. Smallest scrap is 2 1/2x 4 1/2. Smallest square is 3 1/2 x 3 1/2.
I keep up with the cutting and make a quilt when if looks like there is enough.