How very Socratic of you :) I would:

Mainly

- Spend more time with my wife (including doing some of the rest of these things together), when she's not working to achieve her goals

- Hack on several ideas that I have, work with/invest in interesting startups (what I would normally save or put into less risky investments)

Also

- Help my friends out of the rut

- Read more math, physics, sci-fi

- Learn to fly planes

- Keep my thumb on what's going on in the tech world via the web

- Build cool stuff: electronics, etc.

- Buy cool gadgets and hack on them

- Maybe some political stuff, EFF or atheist issues

- I like the OLPC project, I think they should work with American kids too.

- Pick up the piano and violin again, maybe travel a bit

- Say what I think more often

- Some normal leisure stuff now and then

Of course, this would be after 2 weeks of sitting around in awe that I had arrived at what I dreamed of as a teenager.

I can do many of these things in some capacity right now, but I can't really dig in to most of them. I do my current job in hopes of freeing up a half-of-my-waking-life time slice so I can, but that is definitely a gamble. Self-determination is an enticing thing.

I imagine that, even though I've done a fair share of it, there is some introspection to do when you arrive. I wish I had more time to think about this question. What's the view like from there?

"Of course, this would be after 2 weeks of sitting around in awe that I had arrived at what I dreamed of as a teenager."

[Just quoted - to upmod it individually.]

Just curious -- why?

I like the mental image of a guy sitting around in awe. I don't know why.

http://xkcd.com/354/

Or sit around eating Doritos :-)

http://philip.greenspun.com/materialism/early-retirement/

The main difference is that, except learning to fly planes (although I've looked up nearby flight schools, know how much time+money it requires, read up on the basics, and learned what is required to get a private pilot certification) and working with OLPC, I have done these things in my free time already, even concurrently. And when I had more free time (just a couple of years ago), I did them more often.

There is just very little doubt in my mind that the choice afforded by a nice passive income would help me do more things that make me happy.

Also, I hate Doritos. :-)

Know thyself, I guess.

I also wonder if an entrepreneur who already has their $2E6 could focus more on what the user wants. You don't have to worry about what the landlord or electric company wants.

You can if you hate to fail.

Check out Max Levchin.