Get two bottles of Colgate Enamel Health or Optic White Mouthwash for $0.50 each! Go to Walgreens today or tomorrow, where Colgate mouthwash is on sale for $4.00. Buy two and receive a $3.00 Register Reward at checkout. Use two $2.00/1 Colgate coupons from the 7/24 Smart Source insert. What is SS? Click to learn more!