I'm currently going through my scraps from a wedding ring quilt that I already cut all the pieces for. I'm cutting out 1" squares and then if I feel the leftover is big enough to use again I keep it. If not I'll toss it.
The scraps that I keep after cutting out the 1" squares I plan on using in I guess it would be crazy quilting. I plan on just buying some plain canvas bags and sewing them on the outside either randomly or in some sort of pattern like a mosaic.