all of the above and walkies are invaluable with families and groups. There were six of us in May and the walkies (that a lot of the group thought was ridiculous and wouldn't be needed) turned out to be invaluable. These are even good for couples if someone goes back to the room or another location on the ship.... The other thing, for married couples, remember that you are just that... married. We had a nasty incident with a couple in our hallway in May.