We took my daughter for the first time when she wasn't quite three. She had a blast. Some tips: -Plan ahead as much as you possibly can -If you can afford to stay on the property, you should. -Day 1 has to be the Magic Kingdom -You will have a much better time if you buy into the "magic". That's Goofy, not a guy in a Goofy suit. -Hydrate -Schedule around your daughter. She's going to hit the wall at 2pm at the latest. Go back to the hotel. Take naps.