Amazon has the Sensodyne Pronamel Strong & Bright Whitening Enamel Toothpaste, 3 Ounces (Mint) for $3 - 5% off with Subscribe & Save (cancel anytime) - 25% off coupon (check “Save an extra” box, eligible on first S&S order for this product) = $2.10 with free shipping on $25+ or with Prime.