How much money does this even mean ;) I think I would start with buying a loft-like apartment in a city like London or New York. So that I'd be set and didn't have to pay rent. I would also style and decorate the apartment the most awesome ways I could. Especially kitchen equipment.

Then I would take time off to travel all sorts of places all around the world, preferrably with friends and pay that for them if they let me.

I would also give money to some charities, to people in need. And to creative projects that I would love to see realized.