My rear wheel reflector broke today. It had cracked from being hit by rocks and sticks and things, and whatever I did while cleaning my bike today caused it to actually break. I took the front one off (well, broke it off!) for symmetry and because it was developing a similar crack.

I mentioned this to DBF, who was rather pleased about this. He tried taking them off when I bought the bike two (wow, really?) years ago, to no avail (snerk). Of course, now I want to find some silly ones (if they exist), or these: http://www.thinkgeek.com/gadgets/travel-outdoors/e905/