We always fly out of Syracuse, and always have checked bags. This time I am going to try to get away with just carry on luggage. I know the rule about the 1 quart zip lock bag, and that each container inside must be 3oz or less. Has anyone had difficulty recently with containers marked only in metric? Something makes me think that when the rules first changed the emloyees at the American airports had trouble with the containers marked in millelitres instead of ounces. I have some products marked in both ml/oz but I don't want to bring stuff they will make me throw away at the airport.