[KarenWDWCP]

My best tip is to take advantage of Fast Pass and to have some kind of plan for your day ahead of time. You don't have to be a Disney Commando with everything planned out to the last detail because that can backfire too. Just make sure you have at least a mental list of all the things you know you want to see and do and take a look at the park map ahead of time and get an idea of how you are you going to navigate to park to see everything you need to see. You see a lot of people wandering aimlessly through the park, staring at the map - you waste a lot of precious time that way!! You don't want to find yourself criss crossing the park 5 or 6 times to go back and forth between attractions, especially at a big park like EPCOT! You'll wear yourself out that way!!

And if you do have a plan, be flexible with it - everything is NOT going to go exactly the way you planned - if you are flexible you not be as upset when something doesn't happen the way you expected!
:D