Amazon offers the Colgate Extra Clean Soft Head Toothbrush 6-Pack for $3.72 with free shipping via the steps below. (Medium is available for pennies more.) That's tied with our June mention and about a buck under what you'd pay in-store locally. To get this deal:
  1. View the Colgate Extra Clean Soft Head Toothbrush 6-Pack for $4.96
  2. clip the 20% off coupon on the product page
  3. order via Subscribe & Save for a final price of $3.72
Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.