Have you joined the Kellogg's Family Rewards program yet? If not, I highly suggest that you click through and do so!
They also have a rewards program. Enter codes from products or free codes found on the web then redeem for gift cards, coupons, discounts, all kids of products or use them for sweepstakes game entries. Whichever you choose!
As soon as you sign up, you'll have access to the Kellogg's product coupons and they are pretty great. So go ahead and join!