Please make sure that the coupon code is valid and not expired. You can find our currently valid coupon codes in this page. Coupon codes and other discount promos cannot be used along with other store wide promotions we periodically have, like "Buy One Get One 15% off" etc. If you have a coupon code and you would like to use it instead of a specific promotion discount, make sure that you click the checkbox that says "I will be using a coupon instead" on your cart. This will enable you to enter your coupon code at the next step in the checkout.