"By now we all know the TSA rules for carrying on toiletries. If you don’t here’s a refresher: Remember 3-1-1. If you carry-on your toiletries each bottle must weight 3.4 oz (100ml) or less. This applies to liquids, aerosols, or gels. All toiletry items must fit in 1 clear quart size zip top bag. 1 bag per traveler. . . ."