I found a seller on ebay that sells wheat bran (1 lb - $1.69). Suppose to be all fresh. This seller (Barry Farms) has ALOT of great priced items that I will be using for my B&B and soap products.
As far as Walmart goes, I didn't find any soap making supplies. I didn't see anything in the craft section. But if you search, you could find items here and there to use. Michael's has some, but not much either. I'm going to check Hobby Lobby for stuff. Most everything I'm getting is either from suppliers listed on this forum (thanks guys! great info) or from ebay.
Maybe your Walmart may have stuff. Good luck!