It's best to let your skin rest while you're on a flight, but you needn't arrive at your destination bare-faced. Camouflage a jet-lagged complexion and flaunt a radiant glow like Reese Witherspoon: Pat cream concealer or liquid foundation only where needed -- the inner corners of your eyes and nose. Define your brows with a brow pencil and perk up tired eyes with mascara. Finish with a slick on a bright lipstick shade.