"Jitters"

Tomorrow after class, I have the first interview I've had in over 12 years. I'm just a tad bit nervous. I did have a mock interview two semesters ago with two professors (one I didn't know) as a part of one of my teaching courses. It was a big deal. I was nervous then too. We had to prepare and present our resume, cover letter and reference page for the specific position we were applying for and we also had to dress professionally for our interview. After our interview we were graded on our appearance, preparedness and professionalism. I did fine, but I'm still a little nervous. Does anybody have any last minute advice? I believe the main thing is to be myself. That always seemed to work for me in the past...