Looking at the offices I tend to go to:
- Dress shoes vs. outdoors shoes. I work hard to find shoes that I can walk a long way in that are still appropriate.
- Inconspicuous folder vs. any kind of fixed blade knife.
- Small flashlight in my pocket vs. something larger in a belt-pouch.
- Business appropriate laptop bag (in my case with medical and other emergency gear in it) vs. a hydration pack.
- I keep a lighter in my laptop bag on general principle (I don't smoke) but nothing more than that for starting a fire.