To apply a coupon code on Dickblick.com, you will first want to select the items you wish to purchase and add them to your shopping cart. Once you have finished shopping and are ready to proceed to checkout, navigate to your cart. There, you will find an option to enter your coupon code. It is usually labeled as "Promo Code," "Coupon Code," or something similar. Simply enter your code in the provided field and click "Apply" or a comparable button to ensure that the discount is applied to your order. It is a good idea to double-check that the code is entered correctly, as any errors may prevent the discount from being applied. After applying the coupon, you should see the updated total reflecting the discount. If you have difficulties or need assistance, you might consider looking on the Dickblick.com website for further guidance.