My plan before I got my iPad was to buy the smart cover, a clear back shell that works with the smart cover and a sleeve pouch for carrying in my backpack. Now that I have my iPad I really like the feel of it with just the smart cover. And the sleeve. How easy does the back of the iPad s ratch. I know my iPod 2nd generation is covered with scratches in the back. What should I do. Keep just the smart cover and the sleeve or stick with the original plan and get the clear back case to protect against scratches and very small falls or bumps?