Originally Posted by LeslieTQD
I would run a basting stitch around the outside edge (you can do this with your machine) just to make sure all of the layers stay square to one another and one doesn't get pulled in or shifted from the amount of quilting you may be doing. The first quilt I made I didn't do that and at one point I noticed the backing fabric was no longer big enough! Hope this helps.
Yes, I think I'll run some stitches around the edge. I got my basting instructions from DH's grandmother, who hand quilts a lot, and she mentioned having that problem too. I really want to avoid running out of backing!