How do I apply a coupon code?

To apply a coupon code at Zenni Optical, simply enter the code in the designated field during the checkout process. After adding your desired items to your cart, proceed to checkout and look for the option to enter a coupon code. Type the code into the provided box and click "Apply" to see the discount reflected in your total. Please note that some coupon codes may have restrictions or expiration dates, so be sure to check the terms and conditions before using them.