Here's a great deal available at Walgreens this week on Kellogg's Frosted Flakes Cereal. Grab this new $3/3 Kellogg's Cereals printable coupon to combine with a Checkout 51 Rebate offer and Walgreens' store sale to pick up three boxes of Frosted Flakes (or two boxes of Frosted Flakes and a third Kellogg's cereal of your [...]