Boxes of L’Oreal Excellence hair color are buy one get one 50% off this week at Walgreens. Buy two and use two $2.00/1 printable L’Oreal manufacturer coupons. Stack them with a Walgreens coupon from page 22 of the new August Savings Book, located in the front of the store with the weekly ads. One $2.00 Walgreens coupon will automatically apply to both boxes. Pay just $2.74 each!