Hills Science Diet Rebate
Good through 12/31/11, buy a 4lb bag of Hill’s Science Diet Ideal Balance. Send in for a rebate of the purchase price up to $12.99. See details on rebate form here.

Rebates are a great way to try new products and get great savings on things you want.  Many people have trouble saving, a friend of my decided to start a savings account using just rebate checks.  She has saved a couple hundred dollars in just a year.