A couple more items...

- National Park Pass
- Passport (for any out-of-U.S.A. travel). Is it up-to-date (does not expire within 6 months of
intended end of travel)?
- Address book or emergency contact list (including credit card companies)
- Prescriptions for any prescription meds you might need.
- Photocopies of the above for placing in suitcases, etc. You'll want it. Likewise
spare passport photos; you will need them if your passport has to be replaced.

- Duct Tape (take a small roll and save on the weight/bulk, mini rolls are available in Michaels and elsewhere)
- Hats (baseball cap & wide brim floppy "trail hat")
- Flip Flops (cheap, disposable are always useful for public showers)
- Bug Repellent
- Zip lock bags
- Clothes Pins and Parachute Cord
- Mosquito Netting

- Keyfob RFID Signal Blocking Bag (if you have one of those new fangled FOBs for cars--hide your FOB in the bag somewhere obscure in your car and remove the waterproof key and take it with you)

- Multiple device charging station for your vehicle. I bought a Wagan (EL2886) Travel Charge Series USB 6.2 Amp Quad Power Cup for my recent road trip. This model had one cigarette lighter slot and 4 USB slots (2 faster charging and 2 slower). Worked like a charm. I probably wouldn't recharge my laptop with this model but it is fine for tablets/pads, cell phones, MP3 players, etc. It plugs into the vehicle's cigarette lighter. Worked like a charm!