NLXTACY
Wits' End
I have all of my maps laminated. That way they are waterproof and I can use a grease pencil to mark it up and clean it off later. I also always carry extra CF cards for the digital camera. For passports, driver's license, insurance info, etc, I scan them and make PDFs of them and then load them onto a flash drive that I keep in the truck. This is along with physical copies of everything.