Flying isn't what it used to be. So long silverware, farewell free food, hello plastic cup of luke-warm Diet Coke. Between squished seats and lavatory line-ups, traveling in economy sometimes feels like survival of the fittest. Coping in coach is like a meeting of creativity and preparedness; pack the right essentials and its smooth skies ahead, but board with nada and that five-hour flight just turned into a transcontinental trek. To ensure your onboard experience is more jet-set than jarring, we've created the ultimate head-to-toe plane survival kit (in TSA-friendly sizes, too).