Update: The coupon code expired, but the 25% clippable coupon is still available.
Similar to the stackable coupons on Crest’s 3D Whitestrips, you can also combine two different deals on this 4-pack of Crest’s 3D White toothpaste. Just clip the 25% coupon on the page, and then use promo code 5CRESTGLAM at checkout to get all four tubes for under $7.