I very recently had to help someone who was using a new Win8 laptop, and it's amazing how much the little things matter - like the title bar's text being centred. I had several notepads open and it was difficult to see which one was which file, because with the text at the edge I would usually leave that edge of the window sticking out beneath the others, but with the title centred I can't see the filename from either side. That seriously annoyed me.