wow, what a question! I would do so many things... I would learn to play saxophone and take voice so I could be a knock-'em-dead singer
... I'd be a chef, a sommelier so I'd always know the right wine... I'd be a botanist so I'd know what I was looking at... I'd travel, travel, travel.... so maybe I'd write for The Lonely Planet (or more expensive version!)...
What would you do... great question, btw...