Stretch pants Soft top with long sleeves A light knit jacket or sweater — airplanes can get too cold — and this can double as a pillow Slip on shoes (for getting through security and quick off and on while in your seat) Warm socks — no one wants cold ankles (you might need or want support hose) A neck pillow — an inflatable one saves space Reading glasses Books, magazines Entertainment — loaded on portable devices is the best An empty water bottle to refill once you get past security A sleeping mask Ear plugs or noise cancelling headphones if you’re a high roller Healthy snacks — you can…