Right now my morning commute is in the dark. I'm a newbie and only about 10 weeks into biking to work. My sister recently purchased a electric bike from a LBS and the owner had just come back from a Trade show with a couple of these http://www.visijax.com/products/led-jackets-and-gilets/ she sold me one for half price and I really like it. It is really bright. I also use a Thunderbolt Tail Light and a NiteRider Micro 250 headlight.
Using a USB to charge all these things is nice but can also be a chore.
Just as a note:
My co-workers who pass me say they can see me from a good distance before they pass me.