I keep almost everything that's at least 1" wide. Some classic patterns such as log cabin blocks for small projects eat these up quickly. What I don't use for small projects I use as leaders and enders, especially for chain or triangle piecing. However, I do have a friend who donates anything smaller than 21/2" to the quilters who volunteer for The Children's Cabinet, and then another friend who "Oh, Horror" never keeps leftovers. She tosses them. Ah well, to each her own.