Buy one package of Keebler Wheatables Original Golden Wheat or Toasted Honey Wheat crackers (8.5 oz.) (between 07/19/10 and 03/30/11) and receive a refund check for up to $3.89. More info and printable form here.
We also have a $1/2 coupon from the 1/30 Red Plum insert (exp. 3/27/11). You can stack it with this rebate to make a little money on the deal. (Your rebate amount will be *before* coupons.)