1. What is the best way to preserve the battery? Should I try to keep it plugged in every time I use it? 2. Protection. I already have a laptop bag that I use, but it doesn't provide a ton of protection. Is my best bet to get a case like this to put it in and then just use the bag or get something new? http://www.iskin.com/soho/ Also, is there some type of "skin" for macbooks to protect them? Something that you would keep on all the time. If anybody could provide a link or suggestion for cases, sleeves, skin, laptop bags, I would appreciate it.