Legalize weed, not medically. And internationally.
Make Mexico the new Amsterdam.
Go to South America, Russia, India, China, Japan, Iran, Iraq, Jordan, Saudi Arabia Afghanistan, All of Europe, Egypt and the rest of Africa after Egypt, Israel... And last but not least, Texas. At which point I would join/speak to the Coalitions (which already exist), and Succeed the South from the Union so we could have a national debt of ZERO.
I'd be a Pirate, but I wouldn't transport gold. Just Bricks and Bricks of Hash.
I'd grow tons of weed, or fund other people to do so.
I'd make music or fund other people to do so.
I'd train humans to communicate with dogs (and bears), and vice versa.
And... If ANYTHING is possible here, I'd make a Noah's ark in outer space, and send it out to no where in particular. So it could just float around for 1,000 years and hopefully get picked up by some other life forms.
There's more stuff, but this list covers the basics.