Yeah, it really is everywhere. In addition to the other things you learn in those multimedia/graphic design classes, you pick up great observation skills along the way.
Oh, and by a phrase I said in another thread about Comic Sans being EVERYWHERE...
I was on a tour of an old retired ship from just right after WWII (in California), and I spotted this.
http://i.imgur.com/scZsW.jpgTHAT'S RIGHT, COMIC SANS ON PROFESSIONAL BOAT TOURS.