You will need to use your Promo Codes at Chegg by following these steps: Sign in to your chegg.com account, if you don't already have one, you will need to create a new Chegg account. Then, add the selected items to the shopping cart. Next, check the product, select the corresponding available Coupon Codes, and complete the payment. Also, here's Chegg's latest sale on October: Flash Sale! Get Latest Up To 50% Off Coupon.