If you already know the product numbers for products, the Express Order can be used to quickly place an order. You can access this feature using the Express Order link in the secondary navigation:
Simply enter product codes and quantities and hit Add to cart:
Pressing the Load info button will load product descriptions, prices, and availability. This also happens automatically when you enter every 5th product.
If you no longer want to add a product into the cart, simply uncheck the Add checkbox. You also have the ability to choose which shopping cart to add the product into.