Unfortunately for anyone with vacation plans, the TSA agent sending your bag through the airport scanner could give two shits about those warm and fuzzies. You're expected to shrink your beauty products by at least 50% to fit inside a one-quart plastic bag , which then gets squeezed into a suitcase small enough for an airplane's 45 linear inches of overhead space. The process isn't pretty, and neither are most travel-sized perfumes.