I like to do this treatment once a year due to coffee-drinking, and usually it hovers around the $25-$30 mark, so with S&S at under $20 this is not a bad deal. Removes up to 10 years of stains …
Amazon is currently running a "Get 2 for the price of 1" on Oral-B 3D White Luxe Whitestrips. The promotion also combines with the Subscribe and Save bringing the price down a further …