To do when I grow up?

I had the wildest idea a few days ago.  You know I've always felt that I don't really find a lot of meaning in my career, though it pays the bills.  You know I haven't known what to do instead.  You know I want to travel, and it would be nice if I could see that I was doing some good.

So a few days ago I suddenly had the idea ... maybe after the boys are out of college and my financial obligations are over with, I might quit my job and join the Peace Corps.  I checked their website, and there is no upper age limit for volunteers, so long as you can pass a medical exam.

I'd never considered it before, but now I find myself mulling it over and over.