Selco pointed out that his town went from a modern European city to total anarchy in three weeks. Some people had country houses where they would have faired much better, but could not get out of town in time. He highly recommended that your house or building look very unattractive.
Ideally have a dead animal or dead person by the front porch, Selco stated that even the worst gangs did not want to enter such a building to examine what was there. Catch rainwater, camouflage any vegetable garden. Stored foods were important, and do not do outdoor cooking where others can smell the BBQ, etc.
Snipers were shooting anyone they could find during the day, so everything had to be done at night without lights. Their house had 10 people in it, and there was always someone standing watch. To barter, go at night, and be very careful who you see. Hide everything, and be ready to shoot if someone tries to jump you. Modern medicines were very valuable.