Can Promo Codes be used more than once? / Are they applied to multiple items in the same purchase? / How do Promo Codes work?

Valid promotion codes can be applied at checkout by entering them into the field labeled Discount Code. Discounts will be applied to all instances of that product in the cart at time of purchase. 

Please note that you are unable to use multiple codes per product.

Additionally, promotion codes will not be usable during site-wide sales.