There is a nice mail in rebate available on Kellogg’s Cereals right now but it is while supplies last so I wouldn’t wait to submit if you are interested.
You need to have a total of 10 boxes of select cereals* and then clip all the UPCs and submit the rebate form.  You will receive a $10 pre-paid debit card that can be used toward gasoline purchases.
I don’t see anywhere on the form where you have to mail in a receipt so many of you may already have these in the pantry.  Otherwise there are several great deals to take advantage of right now:
4 boxes of Raisin Brand Crunch are priced at $1.60 per box and shipping is free.  (You can also order regular Raisin Bran for just a few cents more.)

Corn Flakes and Raisin Bran are $1.87 this week at CVS.
Use the $1/2 Corn Flakes coupon
Final Price: as low as $1.37 each
*The cereals included in this promotion are:

Kellogg’s All-Bran® Original cereal, Kellogg’s All-Bran® Bran Buds® cereal, Kellogg’s All-Bran® Complete® Wheat Flakes® cereal, Kellogg’s Smart Start® Strong Heart Antioxidant cereal, Kellogg’s Smart Start® Strong Heart Toasted Oat cereal, Kellogg’s Corn Flakes® cereal, Kellogg’s Corn Flakes® Touch of Honey cereal, Kellogg’s Raisin Bran® cereal, Kellogg’s Raisin Bran® Crunch cereal, Kellogg’s Raisin Bran® Extra! cereal, Kellogg’s Crispix® cereal, Kellogg’s Product 19® cereal, Kellogg’s Mueslix® cereal, Kellogg’s® Cracklin’ Oat Bran cereal, Kellogg’s® Lowfat Granola with Raisins cereal, Kellogg’s® Lowfat Granola without Raisins cereal, Kellogg’s® Fruit Harvest Strawberry/Blueberry cereal, Kellogg’s Rice Krispies® cereal
10 oz or larger, mix or match