Welcome to the Board, Cyclista87
I've enjoyed reading about everyone's systems. I am just finishing my second crumb quilt. One group of ladies that I quilt with in Arizona saved me their scraps for 6 months til I returned. Now that I have made a throw with those scraps I have sorted the leftovers and saved some that are colours I like or think I need for another project. The rest are being passed on to a family of 3 that all quilt/sew (Mother, boy, girl). I sort mine by colour or by pending project. I am gathering fabric for several patterns. I like to use the zippered bags that originally contained bedding and linens. I iron once (hopefully). While sewing, I usually line up my fabrics on a large bakers sheets (18" x 26"). Even tho they are in bags, my scraps are all neatly laid flat and the bags all laying flat in the cupboard. I don't precut as then I wouldn't be able to make scrap quilts - I think they are fun, and more of a challenge to get that inside corner filled.