The worst part of my current commute is the fact that my long ride down Mt. Vernon Highway is almost directly into the setting sun. Of course it's not my eyes I'm worried about, it's all the people driving behind me. So what do I do? Of course high visibility gear is normal, but I also run my rear blinkie with the hopes that it will attract a little extra attention. Most importantly I check my mirror often, this $5 device has saved my life at least once. I would call that a bargain.