From The Product Page

Adding items to your order is very simple. The easiest way is to find the item you want and simply click the "Add to Order" button in the top right-hand corner of the product page. If you would like to order more than one of the item, fill in the "Qty" box before you click the "Add to Order" button.

From A Search List

When you search for an item using keywords or by browsing categories you will see a list of items with an "Add to Order" button and a "Qty" field next to the items. Use these the same way as you would on the product page. Some items cannot be added to an order from a list. These items are customizable or have special comments that you need to read before ordering them. To add these items to an order, click the item's title and then add the item to your order from the product page.

From An "Other Options" Box

Many product pages have a box near the bottom of the page that contains similar items. These other items are usually just a different color or material than the current product. You can either view these items and then add them to an order or you can select one or more of them to add to an order immediately.