10-Pack Crest 3D Whitestrips + Two 1-Hour Express Treatments | $20 | Amazon | Clip the $10 coupon
Graphic: Shep McAllister

Update: Coupon is gone.

Here’s a deal to put a smile on your face. Clip the $10 coupon on the page to get 10 Crest Whitestrip treatments, plus two 1 hour express treatments, for just $20. That’s the best price we’ve ever seen on this pack, which is a great way to try them out to see if you like them.