My boys each take a small backpack for the trip. Mostly filled with their "people" (StarWars, Spiderman, Buzz/Woody, etc). On the plane, my 5yo has a PSP to play/watch, my 3yo gets a DVD player. Well worth the investment for long plane rides. They play with their toys at the hotel too. I would never think of travelling without them. I let them bring one toy to the parks each day, I mostly carried in by bag - but they did play with them while waiting for shows or food.