Don't forget that if you are a 'little out of the way' you might need food and water. I'm planning on taking a small 'go bag' for stopping with everytime I fly. Nuts, and fruit flakes are good for longer term energy and chocolate is great as a 'pick me up'. a small bottle of water and some puritabs (for sterilising stream water) with a foldable water container will see you OK. An old saying springs to mind - plan for the worst, hope for the best!
Old habits die hard!