What's the ultimate packing list of things to bring on-board for your flight?

I've started it below, click EasyEdit to add to it.

For a great resting flight, and things to bring on a red-eye: Earplugs Book Neck pillow Ambien, Lunesta, Tylenol PM or similar sleep-aid Eye shades Bottled water

For a productive flight, getting work done on the plane: Before you leave: Fully charge your batteries Synchronize your files Download your email For runway taxi time (no electronics allowed): Stack of articles you've been meaning to read that you can leave behind / throw away To-do list Pen/pencil and memo pad/notebook A good business book Once you're airborne: Bose headphones Music player Laptop Extra laptop battery

For an entertaining flight, things to bring to keep from getting bored: DVD player Laptop with TiVo to Go iPod and headphones, especially noise reduction headphones like Bose headphones A good novel Executive Travel magazine