Amazon has the 3-Pack Colgate Optic White Pro Series Stain Prevention Hydrogen Peroxide Toothpaste (3.0 oz each) for $19 - $7 off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $11 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders).