Hurry to Walgreens! The deal on Sheila G’s Brownie Brittle just got better with new Checkout 51 offers. This week, Brownie Brittle snack bags are on sale for $2.50 at Walgreens. Buy two different varieties, and submit two different Ibotta rebates and two different Checkout 51 rebates. The Checkout 51 rebates state that they cannot be combined with coupons. Using just your smartphone, the final price is $0.50 per bag.