When you find a product you want to order, click on the Add to Shopping Cart button to add it to your shopping cart: the product you just added will show up in your cart.
To modify an item quantity, use the "+" and "-" buttons (or enter the new quantity in the Quantity field), and click Update.
To remove an item from your shopping cart, click Remove.
Click the Back to Products button if you want to order more products.
To view your shopping cart's contents, click the View Cart icon found on top of each page.
When you have finished adding products to your shopping cart and are ready to purchase them, click the Next button on the cart's page to start the checkout process.