I hate it when people say that they don't need to turn on their headlights because they can see. You don't put on your headlights so you can see except when it's night time. Headlights are so that other people can see you.
Sarah was telling me that she almost got in an accident because someone pulled out in front of her. She has a grey car and thinks that maybe that contributes to people not seeing her. I told her that headlights would make the grey car stand out from the asphalt.
I now drive with my headlights on all the time. There are a bunch of canopy roads in Tallahassee that cast shadows over the road and make it hard to see other cars sometimes. I'm going to encourage you to turn your lights on for safety too.