I just got my MBA about a week ago. I will be starting classes soon and didn't even think about it until now...my backpack doesn't have it's own laptop compartment. I plan on carrying my laptop with me pretty much all the time with my books, and living in State college the weather is either rainy or snowy most of the time so I am worried that my laptop will get damaged (either by the books, or bad weather). I have hard cover case on my laptop and I also have it in a sleeve. Will that be enough to protect it? Should I get another backpack with its own laptop compartment? Just looking for some input.