Originally Posted by CrankyOne

I'm not a fan of anecdotes, but there've been enough times when I've been driving that I've nearly hit a bicycle rider who wasn't using lights that I try to always use them and recommend that others do.

FWIW I can't stand super bright lights that aren't aimed correctly and dislike all blinky lights, both of which I think are dangerous. I'm a huge fan of reflective sidewall tires, yellow pedal reflectors, front white, and red rear reflectors. I no longer bother with a helmet as the research I've done tells me that they're not effective. I also don't wear any special clothing, reflective or otherwise.