A few months ago I was scooping these Johnson & Johnson soap buddies bars up for a song because they were priced at .99 cents at Wal-Mart. Yesterday at Wal-Mart, I noted that the price was now closer to $3.50. For the same thing. One little bar of soap.
My local K-Mart is having a double coupon up to $2 day. And K-Mart's J&J Buddies soap is still a reasonable .99 cents. So, I came home with another free bar of soap (and a few other free things- like Pert shampoo).
Don't assume that Wal-Mart is always going to be cheaper. Sometimes they are- but frequently they just aren't.