When I was 17, I thought I was going to be the next Quentin Tarantino and signed up for the radio/TV/film production focus in communication at my school. Everyone in his group met together during orientation. I was grouped in with people who had spacer earrings, listened to KMFDM and talked a lot about nihilism.
I had an inkling at the time that this field of study was not for me. However, I unfortunately stuck with it for four miserable years. The major provided me with absolutely nothing I can use today, aside from the really awesome paper I wrote about "Heathers". And I also got to read a screenplay called "The Island of U.T.O.P.I.A" written by a stoner kid named Brooklyn ("They call me that because that's where I'm from.) that was absurdly entertaining and a topic of discussion on a recent edition of my basketball podcast.
I, fortunately, ended up taking a lot of history classes. Unless you're planning on becoming a teacher, history classes are practically useless. But the professors in that department were all really brilliant and strict in terms of quality of work. My writing and researching skills improved exponentially in those classes.
I wish, as an undergrad, I took more history and political science classes. I'm REALLY glad I didn't take any creative writing classes -- my friends who fancied themselves aspiring writers all ended up becoming lawyers, for the most part.
When I was in grad school, I was able to load up on a bunch of finance, business, accounting and economics classes. These classes have been ridiculously useful. Finance seems really boring but it comes in handy now when I have to pick a 401K plan for my wife and I.
