Just a few things I've noticed in Cairo:

(1) Nobody obeys traffic laws in Cairo. In fact, everyone drives wherever they want. No traffic lanes. No crosswalks. All chaos.

(2) It's so hot in Cairo the geckos fry on the sidewalk.

(3) Walk with purpose. Locals are less likely to screech "Hey brother" to take advantage of your giving sensibilities.

(4) Broken down cars line the streets - causing traffic disruptions (and frazzled American nerves) around every corner.

(5) Tourism is down. In fact, we were one of 25 or 30 people today at the Citadel. It was as though we were treated to a private showing (feeling like Madonna in the process).