I wouldn't worry too much about junk left at home. People left at home, of course I'd try to communicate with them and assist from a distance, but I think trying to enter the disaster zone myself would just make the problem worse. As for my own getting by, yeah, if I were far enough away I'd hope I had enough cash, credit cards etc. to manage for a while, and if there was some kind of emergency assistance activity going on where I was, I guess I'd see how I could help.