Street Smarts:

Study a map ahead of time. Dress down and do not look like a tourist: new sneakers and sweat shirt from your favorite university or sports team. No jewelry even fake gold. Do consider wearing a wedding ring. Wear a money belt, looped into your belt loops. Keep valuables away from the street side. Only carry one credit card and photocopies of important documents with you. Use zip lock bags to divide money for small purchases and for larger ones. Become familiar with foreign currency before you have to use it. Do not talk to people on the street if they ask for directions, change etc. You will still look somewhat like a tourist so why are they asking you? If you must ask directions, ask families, women with children and phrase it "Where is the xxx, I am meeting my husband there". Remove id tags if you have been at a meeting. Lodge a rubber door stop under hotel door for extra security. Bring a flashlight.