With orders of $25 or more, Amazon offers the Crest Baking Soda and Peroxide Whitening with Tartar Protection Fresh Mint 4.6-oz. Toothpaste for $2.99. Clip the $2 off coupon to drop that to 99 cents. Plus Prime members qualify for free shipping. That's $1 under our July mention, $2 off list, and the lowest price we've seen.

Note: This is part of the Amazon "add-on" program and can only be purchased with orders of $25 or more.

Update: Deal has been amended with Amazon add-on information; we apologize for the error.