At Walgreens, buy two select hair care items and get a third item for free. (Add three to your cart to see this discount.) Plus, Balance Rewards members may qualify for additional discounts via clippable coupons on the product page. (Not a member? It's free to join.) Shipping adds $5.99, or spend $35 or more for free shipping. (In-store pickup may also be available.) Brands include Shea Moisture, Aussie, Pantene, Head & Shoulders, and Neutrogena. Deal ends August 26.