To add a promo code you received, navigate to your Shopping Cart page after adding items to your cart. While viewing your cart you will be able to enter a promo code on the subtotal screen, before proceeding to checkout. Promo codes are case-sensitive, need the dashes (-), cannot include any spaces at the beginning of the code, and must be entered prior to placing your order. Promo codes are subject to restrictions and may not apply to all items.