Amazon has a 3-Pack of Crest Gum Detoxify Deep Clean Toothpaste (4.1 oz. Tubes) for $17.99 - 40% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (cancel anytime) = $9.89 with free shipping on $25+ or with Prime.