Today is Diwali - Festival of Lights - so is the perfect time to focus on having good lights.
Sunset is around 4 now so November is the ideal time to review the lights you have, check the condition of them, always make sure to have lights with you and consider what type is best.
Seeing the lights of other cyclists on the road is a good way of considering what are good lights, and you can ask other people for their experiences too such as how easy they are to recharge with batteries or a USB connection.