The Great Dark settled onto the Pacific Northwest in mid-November, permitting the reprieve of sunlight for what seems like only a few hours each day. I'm being dramatic, but having spent so many years in the southwest it's a bit unnerving to step outside my office at 5pm and remember that I missed the day's allowance of sun. The bright streetlights illuminating the cars only accentuate the darkness beyond their reach. On these evenings, I drive home and strap on an LED lighte