Amazon has the 20-Treatment Crest 3D White Professional Effects Whitestrips Whitening Strips + 2-Treatment Crest 3D 1-Hour Express Whitestrips Kit for $45 - $10 off coupon (first S&S order for this product) - 5% off with Subscribe & Save (cancel anytime) - $5 off with code 5CWSPE22 at final checkout = $28 with free shipping.

Removes 14 years of stains and claims to work 25 times better than whitening toothpaste alone.