To purchase items using our Shopping Cart, simply follow the steps listed below. If you are having difficulty adding items to your cart or your cart appears empty after you have added items to it, please consult the troubleshooting tips further down on this page. Click the Proceed to Checkout button to fill out the order form. If you are a returning customer, your 1-Click settings are turned on, and there are no Marketplace items in your cart, you can choose instead to buy your items using 1-Click ordering. Simply choose the correct name from the dropdown menu, click the Buy now with 1-Click button, and you're done!