You will be carrying admission card, Express Pass card, and maybe hotel keycard. Adults should have ID, people might consider having some money. Lanyards with pouches are a great idea. For about $10 each you can get fabulous Harry Potter lanyards that look like the Hogwarts house ties. They have cheap plastic pouches at the end of them. Probably a bit of overkill for the kids, but I like my Witz brand clear, waterproof, hard plastic lanyard that I hang from my Ravenclaw lanyard. Anyway, the point is, you can get a lanyard and pouch from a variety of places for a variety of prices, and they will be helpful. Just know that the cheapie plastic pouches can and sometimes do break