Amazon has 4-packs of Kellogg’s Raisin Bran Cereal for $6.97 shipped when you order with Subscribe & Save and use Amazon promo code KELRTEC2 at checkout. This coupon code expires today, so it's the last day to get it this cheap.
Then, you can combine this offer with this Kelloggs rebate. Raisin Bran is one of the qualifying cereals. The rebate is like a $1 discount on each box, which would make them just $0.74 each.