My mom got me the Da Vinci
http://gifts.barnesandnoble.com/Da-V...da+vinci+cover which was a complete monstrosity and definitely not something I wanted to be taking to bed at night. I decided I didn't really want a bulky cover when I was reading, so I don't use a cover. Instead, I just got a neoprene sleeve
http://gifts.barnesandnoble.com/Neop...eoprene+sleeve for carrying it around in. I'm in the Army, so I wanted something that would keep dust and water out, be able to take a bit of a beating, and is able to fit in a cargo pocket.