I run a headlight and tail light I just don't like riding in the dark all that much. In the morning it's not so bad as by the time I get to roads with more traffic the sun is up. But leaving work in the dark and riding the whole way home that way, eh, just kind of leaves me nonplussed. It's also getting to the point where leaves and stuff on the roads are near hazardous, especially at the shoulder so the next few weeks will be tricky anyway.
If work doesn't get in the way I'll get a commute in next week but I may have to travel the first few days which would squash all potential.