Thanks to everyone. I got the blinky back light when I bought the bike, although I have no intention of riding after the sun goes down. But it's still a good safety measure. I rode a training loop that a local cycling club uses the other day, and it was a good road - not too much was two lane, no shoulder, and that part wasn't too busy traffic wise (well, none of it was all that bad, traffic wise, honestly). I'll just load up the bike and go to places where I feel like I can do the common sense things to stay safe, and not put myself in potentially bad situations to begin with.

This is safety related, but not necessarily crazy road related, but I've been using the app Glympse to send my whereabouts to dh if I'm going to be out riding alone for an extended period. It sends a link in an e-mail to whoever I designate, and for a certain period (or until I turn it off), that link can be used to track where I am.