To repeat a previous order
Log in to your ecommerce account
Navigate to your account dashboard
Click "Order history and invoices"
The shipments order history and invoices page will display your 10 most recent orders that have been processed and invoiced. Click the "View details" link next to the order you would like to repeat. If the order you want to track does not appear on this list, you can use the search fields to fined it; alternatively you can scroll to the bottom of the list and click "Show next 10 orders."
Click the orange "Re-order" button. This will place the contents of the order into your shopping cart. You can then add additional items or adjust the quantity of each item.