Backing up Important documents for emergencies

Mike Panic on how to create a disaster-recovery/data backup usb drive of important documents. (Lifehacker has a more thorough but less helpful article on the same subject).

Yesterday, I discovered three crazy things:

1. my will was not in my safe (I had forgotten to leave it there)
2. on my will a typo had indicated the percentage divvied out to people. From the context it was clear what the right percentage should be. It was spelled out and written out numerically, so the discrepency was apparent. Still, hells bells; lawyers need to catch these kinds of things!
3. I use ewallet, a nifty password management program for my PDA. However, in the event of disaster/emergency, nobody would be able to access these things without my master password!