Save on Nabisco Good Thins with a new triple coupon stack at Target! Each box sells for $2.72. Add a 30% off Cartwheel offer to the app on your smartphone, and then have the cashier scan your Cartwheel at checkout. Use a $0.75/2 manufacturer coupon from the 5/21 Smart Source insert to pay just $1.53 per box. After your transaction, submit the receipt to Checkout 51 for a $0.60 cash-back offer. The final price will be just $1.23 each when you buy two boxes.