Commuting in the dark...

Commuting in the dark is a whole different ballgame than commuting by day. You need a whole different set of gear and some forethought to get where you're going and back home again safely and comfortably.

First of all, the goal is to be seen. If cars can't see you, it won't be pleasant for you (or them!) A minimum of the following is necessary:

A bright headlight, especially if you're taking dark paths or streets;
A red tail light, the more blinking and obnoxious the better - you want the cars you encounter to be able to see you when they're coming up behind you.
Preferably a white helmet - the better to be seen with.
As much reflective gear as you can! 

If it's cold, as it tends to be when we need to ride in the dark, a warm jacket, hat, gloves, and warm shoes (hiking boots work well!) go a very long way to make you comfortable.
Here's my setup:

Another thing to keep in mind when commuting in the dark is the route you're going to take. I've found it helpful to ride it once or twice in daylight so I know where I need to turn, etc., as well as random things I might encounter that I may not see in the dark. When riding a bike path that goes under bridges, it's good to keep in mind that sometimes there are people sleeping under them! They're not always so visible in the dark...

At the end of the day, the views you see if you're willing to think things through a little bit can be beautiful. Sunset is one of my very favorite times to ride. Look at that sky!

Christmas lights can be kinda pretty, too:

With a little planning, you can get all the pretty views, too!