As dunster mentioned, it really depends on what you're planning to make. I like to keep a good inch of fabric on there. It's easier to press and I prefer the fabric showing on most selvage projects. People keep some for me, generally selvage only so I use those for smaller gifts. On my blog (address below if you're interested) you'll find some selvage projects and a tutorial that first appeared here on the board. It's a tab under the title and includes a tip on organizing them as you collect. I'm still saving for a someday quilt....collecting can be a long process, especially if you tend to be a scrap quilter. I find many smaller cuts like FQ, 1/4 yards & fat eighths only carry a small portion of the selvage info, if any. Best Wishes & have lots of fun with this new endeavor.