Did anybody suggest some munchies in case they are stuck for a few hours?
I'd suggest Millenium bars as they are good enough to eat in a crunch but not that tempting.
Also, off topic. Don't try to carry one in your pocket thru the metal detectors at the airport. Took me and TSA a few tries to figure that out.
Also, a 6x8' blue plastic tarp is useful in a lot of situations.