Thanks so much everyone for your helpful responses! Yes, the quilt can most definitely be saved. I took the floss in/out of the quilt twice before tying. Only the knots came loose/undone, the thread did not come out of the quilt -- whew! From your responses, I think the problem is that I did not do a square or surgeon's knot, only the simple "tie your shoe" knot, and I probably cut the floss too short. So, I've decided that since I have to touch them all to re-tie/tighten anyway, I'm going to take these knots out and replace them. Thanks, again, for your quick and helpful replies! This board is the best! P.S. The jury is still out on whether I tie another quilt or not.