My daughters marching band marched down Main Street on her 18th birthday!!! How cool was that? I staked out my spot to watch her 1.5 hours ahead of time just to be sure I was in front. I made sure to check with her to see which side of the street she'd be on. Enjoy, it really is a great experience.
I should add - she didn't want to see us for much of the trip, she was too busy with her friends. I did treat her and 10 of her friends for ice cream that day at the Main Street Bakery, there was an actor there that was the Mayor, and he sang Happy Birthday to her. He changed the lyrics, I can't remember to what but it was really funny.