Jitters

Last night wasn't even the night before the race, and I still couldn't sleep! I wonder if I will ever reach the point in my running "career" that I won't get nervous for races. My friends will tell you that I get this really serious look on my face for the couple of hours before the race starts. I mostly just look like I'm ticked off, but I swear it's just because I'm trying not to puke.

Do you get the jitters? How can I get rid of these and ensure myself a good night's rest tonight?