I have a wire egg basket for small scraps. When I have a few minutes I pull from the basket and make crumb blocks. These are turned into potholders, mug rugs, placemats, etc. when I get a few done.
I have a small wicker laundry basket that I throw larger scraps to cut into 2 1/2, 3 1/2, ect. size blocks. What's left after that either goes into a basket for string blocks or into the egg basket.