Do not burn!
I can’t understand waste. I use everything but crumb size. You can always make something, if not a quilt. I started organizing mine by color or type fabric. I fold them to fit in those clear bins that have 3 drawers in each from Walmart. I lay the drawer on its side & fold fabric to fit, stacking pieces from side to side. When I turn the drawer upright to fit in the frame, I can see the end of each piece and at a glance I know exactly what I have.