There’s no way I could get down on the floor to do it! I have an old dining room table in the basement. I layer the quilt, lining up the edges along 2 sides (to try to keep things even). I don’t care about the stuff hanging off the other edges (if it’s a bigger quilt). Then I start pinning what’s on the table, moving the quilt to pin the hanging stuff after the rest is pinned. I really hate the sandwiching process!