We fly out of MCO everytime.
Last year we were running REALLY late!
We checked out early and drove to Sea World because my daughter really wanted to go on an Endangered Species tour that was filled when we were there earlier in the week.
I thought we left in good time, but there was a bad downpour that didn't let up quickly like most Florida rains... and I didn't take into consideration getting hopelessly lost finding the car rental place.
We got to the airport with only 45 minutes to spare... I really thought we would miss our flight. I was trying not to get too upset and panicky, after all this was our last day of a great vacation. I just thought, ok, if we miss it we miss it. I'll manage and getting upset won't help.
Well.. baggage check in and security weren't too bad at all! We actually made it. Our flight was 7:31, and we got there about 7:20... Just in time to hear them start announcing the delay. We didn't depart until just before midnight!!! Well, at least we didn't miss it.
As for what we usually do our last day.. whatever we can't resist just one last time! We always take a late flight so we can do something for the day and it's not just a travel day.
Our "tradition" I guess, is on the last night before we leave. We always end the night with Illuminations. We sit at La Cantina de San Angel nice and early and get a good view.