If thread basting is an option, Sharon Schamber has some old videos on YouTube on how to do this on a table. You can find them by searching "Sharon Schamber hand basting". I cannot crawl around on the floor like I used to. In her method, you roll your quilt top on a board, and the back on a different board, and lay the batting in the middle, and baste with a herringbone stitch. I usually make large quilts, like Queen size, and baste like this using 10' boards and two long tables placed end to end. This has worked wonderful for me, and keeps the layers held together well, even with the movement of pushing and pulling the quilt sandwich around as you quilt it, and you don't have the risk of the pins tearing your fabric. I just snip the threads as I go so that I don't risk pulling on my stitches. The last few that I've done, I've had friends to come over, and we made a fun day of it. I helped them do theirs, and they help me do mine.