Yep. I'm broad minded. I can think of one or two things I'd do. And being 33, I'd tell you, I'd take my early twenties body back in a cold second.
I third that. I'd like to keep my 33-year-old brain, though.
I'm going to run against the grain on this one; immortality would probably be a lot of fun at first, but then all sorts of weird and annoying crap would start to occur:
Bad:
1) People are going to constantly wonder why you aren't dead.
2) Guinness is going to keep knocking at your door (if they bring free samples, that wouldn't be so bad).
3) Scientists would be asking to do experiments.
4) Government agents and such might quarantine you, and ask you to do dangerous things for them.
5) Reporters and historians are always going to ask questions.
6) The media will always use your name as a synonym for old things (ala Methuselah).
7) Everyone you get to know will die.
8) People will try to kill you. Or at least, prank you all the time, since you won't die.
Good:
1) You can prove that Social Security
will run out (only valid in USA).
2) A handful of people might actually take your advice. You could start a cult.
3) You'll finally get to see a flying car.