Thanks for the birthday wishes, all.
The day wasn't *too* bad. I was at school from 8:00-4:00 (8-9 class, 9-2 work, 2-4 library studying and whatnot).
After I came home, I ate and relaxed for a bit, and then headed out at 6:00 for another local university where there was a big physics lecture/presentation. That kept me busy until about 9:00, and since then I've just been home chilling out.
Can't chill forever though, as I've got a ton of homework.