Um, no. I wear what I wear and tend to avoid at all costs that putrid looking lime green monstrosity. I'm not a safety worker or a lost at sea sailor (the original source for "flourescent" orange) so I don't wear safety orange vests either. The fact that I live in the high humidity Southeastern US also has something to do with my decision - another layer of "clothing" just adds to my personal discomfort in the heat even with venting; but this is a minor reason.

In low-light situations, I might reconsider and give in - night time, heavy rain when I can't wait it out, or even fog. But I really really really hate wearing the hi-vis stuff. Putting reflectors & lights on the bike/trailer is a different matter.