5. Early Breakfast in Magic Kingdom
One of our favorite things to do is reserve an 8am slot for Crystal Palace's character breakfast buffet. Since the park often opens at 9am, you will get into Magic Kingdom before most people even show up at the gates.
It should be noted that the point of this isn't necessarily to beat the crowds—by the time you finish eating, people will already be making their mad dashes to favorite attractions around the park. However, it does give you the chance to see the place while it's still pretty much empty, and get some awesome photos along the way.