Amazon takes up to 48% off select Head & Shoulders shampoo and conditioner 2-packs. Plus, many of them qualify for Subscribe & Save, which takes an extra 15% off and bags free shipping. Even better, click "Clip this coupon" on the product page to get another $1 off at final checkout. Combined, that's one of the best discounts we've seen on Head & Shoulders from Amazon. (We saw a similar deal two weeks ago with a $2 off coupon.)
A best bet is the Head & Shoulders Dry Scalp Care Dandruff Shampoo 2-Pack (pictured) for $9.57. Clip the $1 coupon, then add it to your cart via Subscribe & Save for a final price of $7.13 with free shipping ($3.57/bottle). That's the lowest total price we could find for this quantity by $5.