Whether you buy the travel size or save a few coins and place what you already have in a reusable travel size container, each container must be 3.4 ounces or less, stored in a 1-quart size bag, and 1 zip-top bag is allowed per person.

Statistically, the safest place to sit on an airplane is in the middle seats of the rear third of the cabin. Analysis of decades of crash data by the FAA and aviation experts shows that passengers in the rear of the aircraft have a survival rate of approximately 69%, compared to 56% in the middle (over the wings) and 49% in the front. Specifically, the middle seats in the back are safest because they provide a "human buffer" on either side and are furthest from the initial impact zone and the wing-mounted fuel tanks. Additionally, being within five rows of an emergency exit is a critical factor for surviving post-crash fires or smoke, as it allows for a faster evacuation. While modern aviation is exceptionally safe regardless of where you sit, choosing a seat in the back, near an exit, and keeping your seatbelt fastened at all times remains the best strategy for maximizing personal safety during a rare emergency event.

Bringing hair products on a plane requires following the TSA's "3-1-1" rule for carry-on luggage or packing them in your checked bags. For carry-on, any liquid, gel, or aerosol—such as shampoo, conditioner, hairspray, or gel—must be in a container that is 3.4 ounces (100 milliliters) or less. All these small containers must fit into a single, quart-sized, clear plastic, zip-top bag. If your hair products are in larger bottles, they must be placed in your checked luggage, where there are no size restrictions. It is important to note that aerosol hairsprays are permitted in both carry-on and checked bags, but they must have a cap or locking mechanism to prevent accidental discharge. If you are traveling with a cordless hair straightener or curling iron that uses butane cartridges, these are typically only allowed in carry-on bags and must have a safety cover over the heating element. To avoid leaks caused by cabin pressure changes, many travelers squeeze excess air out of plastic bottles before sealing them or use "solid" alternatives like shampoo bars, which are not subject to the 3-1-1 liquid restrictions at all.