The amazing thing about the P&G eStore is that you get free shipping if you spend $25 and if you've never purchased from their eStore, you can get 15% off your first purchase by using the promo code below. Additionally, they just let me know that you can get free samples with every purchase. With the free shipping and 15% off, that makes those whitening strips only 42$ shipped to your house. Honestly, that's such an amazing deal!!
Promo Code for 1st time purchases: A9Z-MN5-KY3-ISA