Kent's has a great deal on Kellogg's and Keebler products, using the coupon found in their ad you can save $10 on 10 items making them $1.20 each. They have A LOT to chose from, cereals, crackers, cookies, fun things for back to school lunches. You can also use other coupons with this deal for an even better price. The Red Plum insert that came in the mail last week had great coupons for this deal.
Some added perks if you buy two boxes of Rice Crispies and use the peel off coupon on the box you can get a bag of marshmallows for free too.
Check on other cereal boxes for other coupons, they are changing their stock often.
Kent's is great about coupons, they usually have ads or copies of the $10 coupon at customer service and will let you use the one coupon for more than one multiple of ten.
One warning though, I don't believe they accept coupons printed off the Internet anymore, so don't plan on those.