Mxsmanic wrote:
What things do you consider it essential to always have on board for
every flight? Not just things required by law, but things that you
personally believe in having on the aircraft before you leave the
ground.

Cash.
Credit card.
Nail file or emery board (it's a gender thing)
Bottle of water.
Cell phone.
Telephone number of my attorney.
Extra jacket.
More cash.
Extra batteries for headset (ANR), GPS, handheld radio (fortunately,
they all use AA)