Amazon has the 2-Pack 6oz Colgate Baking Soda and Peroxide Whitening Toothpaste (Brisk Mint) for 3.78 - 20% off (check “Save an extra” box, eligible on first S&S order for this product) = $3.02 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders).