They basically do sell pam at walmart...they sell equate or rid bedding spray. It has the same active ingredient and % as pam. Thats what I use. I just follow the same procedure as if I were using pam. Haven't had any problems with it.
Hmm... Anyone have experience with both PAM and Equate?
I'd rather spend the money on something I know works, versus something that is supposed to work the same.