I think a lot of it depends on how many millions we are talking about. Even one million would pretty much set you up in my neck of the woods assuming you didn't go off the deep end. It would buy you a house and a car and if invested properly would give you an annual income for life. Now if we are talking millions, I would invest most all of it. I would start a foundation, buy a record store with a speak easy in the back, and do some traveling. All of it would be funded through the interest so I never have to worry about turning a profit or how I am going to pay my employees.