How do you know it's time to stop doing homework and go to bed?

When you finish all of the songs in your iTunes library. (Granted, I don't have many on this computer yet, and I was just playing a selection, but I think I'll go to bed anyway.)

Oh, and I finally have access to everything (I think), although they still can't get my address straight. Here's my suggestion for attending college: don't ever move, change your name, or change your major. It's just too complicated. At least I didn't change my name mid-way through any programs. I think that would be way too much for them to understand.