If you have a child, plan your trip so you are at Magic Kingdom when it opens. The crowd gets really heavy around 11:00 am. But it’s amazing what you can do in those first two hours before the lines get long. When you get into the park, go straight to Space Mountain. You will have almost no wait! Then go to the Buzz Lightyear ride. You can ride that repeatedly with almost no wait until about 10:30am. Space Mountain and Buzz Lightyear are two very popular attractions but if you hit them early, you can start your day with a bang without waiting in lines!!