I just found out that the iPhone has an app that will allow you to determine your personality through the Myers Briggs Personality Trait Index by only aswering 40 questions. I took this test 20 years ago when I was in college. I have found out that I have changed a little. I am now not an extrovert that I used be. Some people might actually be relieved to hear some news like that. The nice thing about the app is that after you take the test, you can then read a nice description about your personality. You can also compare it others and see how you would do in a relationship with that person. The cost of the app is about three bucks, which is a little steep, but nothing compared to what a professional test would cost.