My everyday carries are pretty simple:
1. Keys, chained to my belt so I can’t lose them.
2. Cellphone, currently 1st generation iPhone SE as of this writing.
3. ID & similar wallet stuff, carried loose in a pocket so I can’t lose them all at once.
I’m a pretty simple guy.
Optional – things I frequently carry but not always:
4. Pen knife (when traveling/camping, often a pen knife and utility knife… different tools for different uses.)
5. Rubik’s cube or similar twisty puzzle.
6. USB phone charger and USB cable.
7. Tobacco pipe & pouch of tobacco, as an aid in self-destruction, but not as bad a one as I used to use.
Thrilling, huh.