when cutting up scraps....I usually cut them into the larger sizes first and then go on down unless I have a project already in mind to do scrappy. For longer scraps at least 12 inches long, I cut 2.5, 2, and 1.5 inch strips on my accuquilt. for my squares I cut 5, 3.5, 2.5,and 2 inch squares. I generally keep larger scraps (less than a fat quarter or less than 1/2 yard width of fabric) sorted by color intact until I have a specific project. I find keeping the larger scraps intact gives me more options when a project comes up...but it is fun to some already cut up to make 5 and nine patches when I have time. I also have a large box of strings, a box of selvage edges, and a box of crumbs...which are pretty small like left over triangles or odd shapes.