I don't know what to do with it. I'm very fortunate to have it and it gives you room to maneuver. But the main thing about having money is it means you don't have to worry about it. And that for me is a lovely thing. It's not for fast cars and hookers.
I got to spend all of my time every day at work reading and editing papers about cutting-edge technical research and getting paid for it. Then I'd go home at night and turn what I learned into science fiction stories.