Amazon offers the Colgate Total Whitening Toothpaste 6-oz. Tube Twin Pack for $3.72 with free shipping via the steps below. That's tied with our mention from last June and about a buck less than what you'd expect to pay in local stores. To get this deal:
  1. View the Colgate Total Whitening Toothpaste 6-oz. Tube Twin Pack for $4.71
  2. clip the 20% off coupon on the product page
  3. order via Subscribe & Save to yield a final price of $3.72 and bag free shipping
Be sure to cancel Subscribe & Save after your order ships to avoid being charged for subsequent orders.