I've seen a lot of cases, business style bags, and portfolios, but what about a backpack for a college student? As a student, hauling around my books is pretty essential... Now those messenger bags leave me walking around practically bent over sideways... So a good backpack is a must... but still being price conscious, although this is something I don't want to skip on. Keep in mind that there are some days I honestly couldn't fit any more books in my jansport backpack even if I tried. So, what's the best backpack that can fit/protect a 12.1" tablet, fit a bunch of books, and not be so big that I look like a little kid wearing a backpack two sizes too big.