Hurry to Walgreens to stock up on Oreo Cookies. The 5.2- and 5.5-ounce packages are on sale for $0.99. Buy two and use a $0.75/2 coupon at the register. Pay $1.23 out of pocket. Later, redeem a $1.00/2 Checkout 51 rebate offer for a final price of only $0.12 each!