I've been so on time for two appointments recently (no small thanks to this website) that I thought I was in the wrong place!
I had a real panic about the second one, because I'd organised it, and momentarily wondered if I'd got it all wrong, and told people the wrong date/time/place. No, I was just first one there. What a strange feeling. I quite like it - I'm definitely motivated to cultivate this being early/on time thing.