I leave mine as is just in case an applique pattern comes along that I simply cannot ignore. If applique is not for you than you can always cut to a size you know you will use or find a pattern for scraps or crumbs and get busy on another quilt while you finish one. So many possibilities when you have scraps. The main thing is to do something and not become buried in scraps when so many more fabrics need to be bought and used.