I would buy Disney, Nintendo, Pixar, all the oxygen in the world and tax people for breathing >:D and possibly Crayola, which owns silly putty. :D Lots and lots of silly putty :P
All in all, I would be making about $12,000,000,000 a day, so I could buy even more things!
I would save up my money for world domination through purchase, and then on to the moon. Then, as I would probably be getting even more money, I would send a rover to Mars, and claim it.