Walgreens has Crest 3D White Charcoal Toothpaste and Crest 3D White Toothpaste on sale for $4 each. Buy one of each, and use the $3.00/1 Crest 3D White Professional, Whitening Therapy Charcoal, Ingredients or Brilliance 3 oz or larger Walgreens digital coupon and the $2.00/1 Crest Toothpaste 2.7 oz or more Walgreens digital coupon. You get $4 in Walgreens cash when you buy 2, make it better than free.