DENSE FOG this morning - I almost punted and took the car but decided to give it a try, since traffic is very light today. My Dinotte 600 headlight & 140 taillight combination, supplemented with a PlanetBike Superflash on my helmet, seemed to work pretty well. I did take the sidewalk at a couple of places that I normally ride on the road due to the bad visibility.
The ride took about 10 extra minutes this morning - glad I decided to ride!