I recently asked a wealthy man about his essential wisdoms. He keeps most of his money mobile, so he can scoot in minutes.
There was a line in "Gone with the Wind" after Miss Scarlet asked Rhett Butler for money where he answered (to paraphrase) "My money is in Liverpool."
When I heard that line in the movie theater as a punk kid it changed the course of my life, although my focus came to be in South America. It's harder to do that these days, as foreign banks seem to not want to do business with Americans.