It's a huge coincidence that you said that because, years earlier - before I met Malone, I asked his associate Bill Daniels that very question. He sized me up and said, "Don't spend a dime. Just save everything you can. You can invest after you've first learned discipline."
One of my fraternity bros played rugby with Mark Chabenisky (Cuban) .
He got in on the early round of broadcast.com, retired at 50, and still lives like a potentate 20 yrs later.