The smallest scrap I save is 1 1/2 inch squares. I am planning on doing a postage stamp quilt. I also make doll quilts though so I dip into that basket a lot. I have 1 1/2 inch squares, 2 inch squares, 4 inch squares 4 1/2 inch squares and 5 inch squares. I don't really have strips, as I don't usually have the width of fabric (wof) for those.