Amazon has the 4 Pack Colgate 360 Whole Mouth Clean Toothbrush (Medium) for $8.97. Add 2 to cart to reach $17.94 - 30% off multipack discount - 20% off coupon (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $12.56 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders).