Thanks for all the suggestions.

I was also beginning to dread fall and shorter days. I was thinking that our riding after work would end. The lady at the bike shop showed me a cool light that she uses and says she rides the trace at night with that light. She said I'd be surprised how many people are over there riding with lights.

It's a rechargeable Light & Motion 4w LED light. It was pretty bright!

Anybody ever used one?