- Re-usable water bottle. You know, for the environmental reasons.
- Notebook. I don't like to make notes on my iPhone, I prefer paper.
- Business cards. You should always have this in your pocket, you never know to who do you might meet.
- Personal camera. Even when I travel for a photoshoot, I always have my "own" camera with me for personal projects.
- Noise cancelling headphones. Well, sometimes you need your privacy.