Share 'Backstories? How do you do it?'

I know how one can take off and go when one is young. Health insurance doesn’t cost much and you leave whatever stuff you have at your parents but when you are older and bolder? What are your backstories? I’m wondering where do you “live”, that is, what do you do about your address for auto insurance and license/registration, health insurance, and credit cards when you are living 6 months in a...