Do you use a case on your MBP? A keyboard cover? A full hard cover case? Vote for what you use in the pole. I'm curious to see what people use. Personally, I don't use any case except for a small neoprene sleeve to carry my MBP around in. Apple designed their products the way they want them to look and feel. IMO, using a case that is always on the product inhibits the product's natural feel. For example, I like the way the iPhone feels in my hands, but with a case on, it just feels awkward.