I have always half-joked over the past 20 years that if my first career choice didn't pan out, I'd become a history teacher (I have a masters in political science and read "big, thick, non-fiction, history geek" books -- as my wife puts it -- for fun). Well, I've decided to take the plunge. The more I learn about the teaching profession, the more I know its a great fit for me. However, I still have the normal "buyers remorse." All you other midlife career changers out there, please tell me I made the right decision. Also, could you also let me know about any potential common pitfalls for those entering the profession midlife that I should watch out for?