You can add items to orders you have placed with Amazon.com provided the order hasn't already entered the shipping process. Here's how:

1. View the status of your open orders to make sure your earlier order hasn't entered the shipping process. Please bear in mind that items shown as shippable within 24 hours may enter the shipping process immediately after you place your order, and it may not be possible to combine such items with existing orders.
2. Order the new item you want to add by visiting the item's product information page, adding it to your Shopping Cart, and proceeding through checkout.
3. After you place your order, return to Your Account and click the "Combine orders" link.
4. Select the orders you wish to combine and click the "Combine orders" button. If the orders you're combining have different shipping or payment options, we will ask you to confirm the options of the new order.

Click here to combine orders you have already placed.

Note: We're unable to combine or add items to the following types of orders:

• Orders where items have already entered the shipping process
• Orders to be sent via free Super Saver Shipping
• Orders for gift certificates
• Orders paid for in total by gift certificate
• Replacement orders generated by our customer service department
• Orders for cell phone products and services
• Orders placed using a corporate account
• Orders placed with Amazon Merchants
• Orders placed on the Borders teamed with Amazon.com store, using Borders Gift Card funds
• Orders placed on the Waldenbooks teamed with Amazon.com store, using Waldenbooks Gift Card funds
• Gold Box orders