With orders of $25 or more, Amazon offers Prime members the Crest 3D White Radiant Mint Toothpaste 2-Pack for $5.71. Clip the coupon to cut that to $3.71. With free shipping, that's the lowest price we could find by $2.

Note: This item is part of Amazon's "add-on" program and can only be purchased with an order of $25 or more.