The right travel essentials can mean the difference in arriving at your destination refreshed or completely drained. Between dry cabin air, long layovers, and cramped seats, seasoned travelers know that packing strategically matters. That’s why we tapped veteran flight attendant Karen Young to share her perfected packing list: She’s worked the skies since 1979, with nearly five decades of long-haul flights and more than 100 annual trips under her belt.