I've often wished for some kind of dream recorder. I have had some very intense dreams, even "inception" style where I fall asleep inside a dream. In these dreams I'll talk to witty people, hear incredible music, see fantastic sights. But once I wake up 90% of the dream is gone and I only remember some highlights.

A weird realization for me is all the events in the dream were produced by me. Yet in real life I'm useless in front of a piano, or a paint brush. It would be great if there was a way to tap into that creativity once awake.