Here are a few simple steps that can help you stay healthy and, equally important, look great when you arrive at your destination. Get plenty of rest, too. The common practice of running yourself down so you can sleep on the flight is counterproductive. Everyone packs for the trip, but few people pack for the plane. Bring your own food, water, comfortable shoes, a sweater, and other provisions discussed below.
Planes are beyond filthy.
Bring a packet of anti-bacterial wipes and clean your hands before you eat anything or put your fingers in your eyes, nose, or mouth. When you use the bathroom, use a paper towel to touch handles and use your own wipes to wash your hands. Drinking alcohol dehydrates you and the air in planes is already way too dry. You want to stay hydrated with lots of bottled water. Many people don't know that there are no standards on airlines for water quality.