NEW!!! Watch this on Youtube: http://youtu.be/9dTSNaqNPVI
Turns out you can make awesome portrait light by just handholding a speedlight with a FlashBenders Softbox somewhere above your subject. This video is a quick little selfie-video answer to the twitter question of Brad Chapman.
Here's the stuff I'd use for club photos:
Rogue FlashBenders Softbox: http://goo.gl/1Tdf29
Mitros+: http://goo.gl/kizIYn
I forgot one little detail in the video: when shooting "in da club" in TTL then use the spot-metering mode of your camera, so that it only cares about the light on your subject and not about all the funky lights that might go on around your subject.
If you like any photo tip from me please tweet and add the hashtag #ItMadeClick, so that I see the tweet and have a chance to pick up your question in this program.