I'm all about making myself as visible as possible. My ride to work in the mornings takes place well before sunrise, so I'm in the dark (!) a lot. I have a Planet Bike Superflash taillight -- that sucker will definitely catch the attention of whatever motorist happens to be out at that time (not many, thankfully).
For a headlight I am using a Planet Bike Blaze 1/2-watt LED. It's serviceable, and I love the compact size, but I could stand to have something a little brighter. I understand they have a 1-watt light, so I'll save up for that (I think they're around $45, but don't hold me to that).
I also added reflective stickers to my helmet and wheel rims (got 'em from the TE store). At some point I will get a reflective vest, as well.
Riding at night (well, early morning, really) is a little spooky, but I've gotten used to it. Now I enjoy the peace and quiet that I get at that time (disrupted only by my grunting and wheezing on the one Massive Killer Hill that I have to climb).



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