We are considering a trip to Anaheim this spring and FL this summer to Disney. At least one of those trips will be on an airplane and public transportation. My daughter is old enough to be out of a car seat, but I still have her in a booster because she's a bit short (49 inches). I don't know anything about airplane or taxi regulations or suggestions, so if you would enlighten me, I'd be greatly appreciative. I would assume we will probably use taxis and buses some along with the flight. Thanks so much!