Just a heads up that Target has Colgate Optic White on Sale for 2.99 this week. After Target and manufacturers coupons you can score it for .49! I haven't tried this toothpaste yet but have heard good things about it.
Colgate Optic White toothpaste-2.99
-1.50 off 9/11 Smartsource
-1.00 off Target coupon