Where do I enter a promotion/discount code?

You'll have the opportunity to add a promotional code at the shopping cart stage, which is one step before heading to the checkout page.  You can also enter it in the last step of Checkout after entering your shipping and billing information. Just enter the code in the box that says "promotion" and click the + sign. 

Troubleshooting hint!  If you're having difficulty applying the code, it's best to double check that you're logged in since many discounts are account specific.  Additionally, double check that the terms of the promotional code you're trying to use work with the items you have in your cart.