Personality test, that is--the one that narrows in the most accurate way, and can give you the most info about yourself. They also sell info based on your test--best occupations for you, etc. A good friend swears by it.
http://www.ansir.com/I remember when it was free and in Beta. I've changed a lot since those days--my new results are Thinking: Kinsmen, Working: Eccentrik, and Emoting: Philosopher. Now--is it worth paying for the list of occupations? Direction could be valuable, here...