One of the best pieces of advice in Dick Bolles’ What Color is Your Parachute? (buy it here) is to interview for the job you actually do not want.

Why?  Practice. 

Why wait for the perfect job opening?  Apply at a few jobs that you even might be over-qualified for…and definitely those jobs that you cannot see ever fitting you.  The concept is that you will learn how certain phrases, answers, etc come across.  This practice interview can do wonders to get you prepared for the prime interview…which you must ace.