Since I sew clothing as well as quilts I have the scrap problem you describe. All my yardage is ruler folded and stands on shelves in the closet. Large scraps are laid as flat as possible on the table, then rolled, tied with a thin piece of fabric (selvedge maybe) and stacked on a shelf like wine bottles. This way I can see the colors but I know it is not a continuous large yardage piece. Some people would take these scraps and cut into strips or squares. I never reduce the size of scraps until I know what size I need in the project I'm using it for.