I have upgraded the 'Basktet' Magento extension to its advanced version. Basket shows all your cart details on a popup box in a beautiful fashion. Just click on 'My Cart' and all products are shown in the popup window. You can easily remove and update the items in the cart without navigating to any other page and your cart is updated in seconds. So Basket can save a lot of customer's time that they spend navigating here and there.