My best tip is to read Hydroguy's Tips Compilation. Everything you needed to know!
http://www.disboards.com/showthread.php?t=1520483
Many people say, just relax, take it easy, take it all in...
I think it depends on what kind of a person you are. If this is a once-in-a-lifetime trip and you want to see as much as possible, you need a plan, and tips so you know how to get the most out of your time, with the least waiting in long lines and getting stuck in crowds.
I find my trips much LESS stressful when I have a plan beforehand. We never stand around with a map arguing about what to do next, or criss-crossing the parks and getting too tired out. We never wait in lines longer that 15 minutes at the most. I am NOT a "commando"; we go at an easy pace with lots of breaks... but we always have a pretty good idea where we're headed next, and we roll with the changes when necessary.
But, if your family loves to sleep in and hates itineraries or planning, you will probably end up doing a good bit of wandering and standing in long lines. Then again, some people aren't all about riding the big rides.
So, do what suits your family and your style best!
