DS is coming along, but he doesn't know it yet (he's 13). He needs some new clothes, so I told him we are going to go buy him some shirts at "a very big shopping area". It's not a lie! Disney is indeed a very big shopping area. He'll get suspicious when we hit the airport, but I think I can redirect him for an extra 20 minutes by telling him we're going to visit his cousin (also true... just not saying WHICH cousin).
When he sees the plane is going to Orlando............ well, I don't think I'll be able to fool him after that.