I use reflective gear and lights. Some of the riding I do requires it, but I feel uncomfortable without reflective gear even though I have lights. I was out in my car chasing a rider on a randonnee once, and was a little worried about catching him because I was worried about his visibility. When I caught him, his reflective gear was incredibly bright. His lights were also bright, but they are smaller.

I don't have reflective tape on any of my bikes any more. It probably shows up, but a reflective vest and ankle bands are much more visible. The reflective ankle bands moving up and down are pretty hard to ignore. I'm a believer in pedal reflectors too.