I sort my stash primarily by color, but some are by category. A few of my categories include batiks, juvenile/kids, 1930's reproduction prints, holidays, flannel and precuts. If I have a full line of fabrics I will keep them together but store them by the dominant color of the prints. stash organization is an ever changing evolution the longer you are a quilter.

Jenny's newest tutorial on the pet beds would be a nice use of some of your small scraps. Be sure to watch it if you haven't already.