Justin, Smulkin discovered WM apparently recently stopped carrying them, at least in his area. Jeanne, I'm glad you were able to find inexpensive ones in those places. I checked drug stores before I ever went to WalMart, and check them from time to time when I happen to be in one, and I've yet to see a heating pad without auto shutoff for less than $21.99 in a drugstore, and sometimes they don't carry the ones without auto shutoff at all. Target was my second-best option, with the pads for around $17 each.