I just ordered a refurbished blackbook and since I'm obsessive compulsive about keeping things clean, I was wondering what the best solutions are for cleanliness. I'd really like to keep it from getting any scuff marks, discoloring, and even cut down on the grease marks I've heard about. What methods do you guys use to keep it looking nice? A cover? Skin? Cleaning product? Thanks in advance. Oh yeah, I'm officially joining the "I got my first mac" community!!