Once you have selected an item to buy, simply click the "Add To Cart" button for the item you wish to purchase. This will add the item to your shopping cart and present you with an opportunity to select other popular products.
You can then scroll down and either click "Continue to Checkout" or "Keep on Shopping" to add more items to your cart.
When you're finished shopping, click "Checkout and Pay" to check the contents of your shopping cart, calculate postage costs and choose whether to purchase Extended Care.
Finally, click "Continue to Payment" to make your payment using Visa, MasterCard, PayPal, Amex, Paypal, or Interest Free. For credit card payments your card will not be charged until you reach the final page and click "Confirm Order".