10. Allow Yourself Time
The Magic Kingdom is a very large park. Not only that, it also includes an enormous number of attractions, and almost every single one is a must-see. Rushing through in one day is a surefire way to leave feeling overwhelmed and frustrated.
For these reasons, it is incredibly important that you allow yourself plenty of time to see and do everything. Most people can get everything finished in two days, but three days is ideal if you can swing it.