Walgreens has Colgate Optic White Stain Fighter Toothpastes, 6 oz. or Colgate TotalSF Advanced Toothpastes, 5.1 oz. on sale for $3.99.
Use the $3.00/2 Colgate TotalSF Advanced, Optic White, Renewal, or Charcoal, Zero, Enamel Health, Sensitive or with Charcoal Toothpaste 3 oz. or larger Walgreens coupon and buy 2 to get $4 Walgreens Cash. Use two of the $1 Colgate Ibotta offers to make it free.