Well don't do what I almost did.  I sat down to fill out the Olay Rebate & discovered the bar packs, need to be 6 or more & I only had 4!  So just ran out and got another product, as I didn't want to miss out on $15, but did have to spend 6.99 more!  Rats-means my great Walgreens deal didn't end up so well after all.  I would have been more upset though, if I hadn't discovered it in time & I still did get a lot for a fraction of the price.