I keep my scraps in containers. Most of them are either stripped 2 1/2 wide or if the piece is larger 6 1/2 squares. These are used to make children's quilts and donated to the Linus Project. I have also given to other charitable events as they come up so the pieces are ready for me when needed.
The 2 1/2 in strips can also be used for bindings for these quilts.