If I were flying commercial and the plane were to crash and I was to survive, my immediate priorities would be successful egression and self treatment for exposure and shock. To this end, I would carry these items: something to cut the seatbelt (discretely sharpened carkey), a bandanna, a bright flashlight (Surefire E2 Elite), a whistle (on my keychain). I would be wearing long pants, button down shirt and would have a light windbreaker or anorak. I would also, more than likely, be wearing polycarbonate sunglasses (my usual daily wear) and a baseball cap. The rest of my kit would be a few altoids kit type items scattered around my person. I would, more than likely, have a few large garbage bags in my carry on luggage along with a few first aid items, duct tape, paracord, and a 1 liter Desani bottled water or the like.