Amazon has the 2-Pack of Colgate 360 Charcoal Sonic Powered Battery Toothbrushes (Batteries Included) for $15.18 - $8 off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $7.18 with free shipping on $35+ or with Prime.