Walgreens offers its members two Head & Shoulders 13.5-oz. Shampoo Bottles in Smooth & Silky or Ocean Lift for $8.53. (Add two to your cart to see this price. Not a member? It's free to sign up.) Clip the $4-off coupon on the product page to cut the price to $4.52. Opt for in-store pickup to dodge the $5.99 shipping charge. That's at least half of what you'd pay elsewhere for any two of these bottles. Deal ends April 28.