Create coupons to encourage additional sales on your website. Use coupons in your marketing campaigns. Include coupons when sending newsletters to your customers. Rotate promotions by placing coupon codes on your main site to let new visitors know they can use a coupon to get a discount on their purchases. You can setup coupons that offer a percentage discount, a specific dollar amount discount, free shipping, and buy "x" get "y" free. Coupons also allow you to restrict which products can be applied and you can limit the number of repeat uses by a customer.
Gift certificate products can also be setup, allowing your customers to purchase gift certificates through your website. Gift certificates are great as gifts and can increase your sales. Purchasers of gift certificates will receive a special code that can be entered during the checkout process of future orders.