My Bare Bones Pack List

Charge 4
Waterproof, sturdy, and can charge your phone. I really don't go anywhere without it. It's great for traveling! 

There are other models, lighterweight, etc. They link up via bluetooth if you want surround sound, some clip on ones, too. 

travel adapter

I don't pretend to understand the witchcraft of electricity. But don't fry your shit. Grab one of these and save yourself a headache later.
When you've just landed it's one less thing to worry about and you can charge up, rest and then go exploring!
If you forget, grab one at a local convenience store instead of the airport. Souvenir!

Bring your stuff; unload it and use this as a day bag or for hiking/activities. Or as a shopping bag.

My backpack has been on literally every trip since 2005 and is still going strong, it's discontinued but is a Columbia and was $40. I've hiked, cragged, camped, stomped, boated...you name it. You don't need expensive or fancy. 

camera bag

This thing..is awesome. I use it as a day-bag while going around cities. It's inconspicuous and sleek. Backpacks = sweaty nasty back.

- Wiping down before you get a shower after a long day of travel is really nice. 

- In hotter climates they're just nice to have in your day pack. 

- Can't wash your hands? These work.

- dry your hands in the bathroom
- clean up spills
- protect your stuff from condensation
- easy cushion for your valuables