I never have good dreams. They are usually pretty boring. But the ones I vividly remember are really interesting. I think a dream diary is a good idea, for when I have nothing to think about while trying to sleep. I had a dream once that I was on a train that was invisible, but I knew it was a train (if you know what I mean) and I passed this building that had yellow, blue, and red griders, and was really tall and then I climbed in it or something. The cool thing is, I've had dreams in that scenario 2 or 3 times. I love that scenario.