Amazon offers the Crest 3D White Luxe Whitestrip 14-Treatment Kit
for $30.05. Clip the $15 off coupon on the product page to drop that to $15.05
. With free shipping
, that's tied with our expired mention from three days ago and the lowest price we've seen. (It's also about $15 less than you could expect to pay in local stores.) These strips are designed to be used once a day for 30 minutes.