I have anything I can get two or more 4 1/2 inch squares folded with my FQ's and yardage sorted by color in plastic containers. I work with mostly scraps so my yardage is far and few between. I keep strips in their own container, triangles in another. I keep "unloved" and foundation fabrics in a hat box. Anything that's not cotton is in a box I have labeled "other". And the weird wonky little pieces go into a picnic basket next to my work table. All of the crumbs go into a big plastic pickle jar that end up as stuffing for one of my furry family members.