I have epiphanies all the time, sometimes big, sometimes small.  I can't remember the last one I had, probably because it felt so natural, flowing with the rest of my life, that it's just part of the conversation God and I have - even when I think I'm the only one speaking!  When I do get answers or direction, it can come any number of ways - through the lyrics of a song I hear, like others here have said, through somebody's actual words to me, or through my Tarot cards, which I use to clarify and literally put into images what the answers are.