In the past, all of my trips were with my mom, who was a theme-park Nazi. She had all of the touring plans committed to memory and used to be one of the sprinters @ the rope drop at every park opening; we've got a lot of video footage of her rapidly-disappearing back.
Nowadays, we've got specific things we want to see & do and can live without the rest, so we hit the highlights first thing and then kind of meander for the rest of the day.