I've tried to plan the last few trips to Disney on both coasts so on the last day, right after the fireworks (or right around closing), I hang around up the stairs at the train station and watch everyone file out of the park for a while. It's always been pretty empty when I do it, the crowd thins, and I can take in Main Street without all the craziness of being down in the crowd. Maybe it's kinda cheesy, but I enjoy it.