Amazon has 44-Count Crest 3D Whitestrips Professional Effects Teeth Whitening Strips (22 Treatments) on sale for $29.99 - 5% when you checkout via Subscribe & Save) = $28.49. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter BBQchicken for finding this deal.

Note: You can save $5 when you purchase 2 participating items here (this product is included). You can manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to extra 15% savings when you have 5 or more items in your current monthly subscription.