Personally, I hate Shopping cart! It is second most overrated features one should have in their online store after background music. How often your customers order more than one item? If they do, you have hundred more ways to accomplish this without a cart. Having a cart means reducing your conversion rate!
You probably need a real shopping cart when you are in a supermarket, but not in an online store! Wait, you shop virtually. There is nothing heavy for you to carry around. So why you need a shopping cart? But how are you going to handle orders with more than one items? Check out this example from the Travel guide online store, a4trip.com
a4trip.com: push the cart icon to order!
online shopping is very exciting because you do not need to go on a shopping store to purchase items.’,’