Except for Christmas (wrapping paper, empty plastic clamshells) or July Fourth (tractor pulls, fireworks), Black Friday is probably the year’s ecological nadir. A perfect confluence of boredom and low, low prices, the day after Thanksgiving has made firing up the Tahoe and hitting the sales seem almost virtuous (thrift is a virtue). But with the economy plunging as quickly as a GM exec’s hopes for scoring the G4 for a holiday jaunt to St. Barts, maybe it’s time to paint Black Friday green…with Ed Begley Jr.! The erstwhile St. Elsewhere star, author of a musical about César Chávez, and 9/11-truth-movement advocate will lead a bike tour of D.C. during which he’ll talk up the benefits of programmable thermostats, ceiling fans, and efficient heating. What, you’re gonna go see Fastball at Jammin’ Java instead? Go for a bike ride with one of America’s great character actors, and you’ll have a crackin’, low-carbon-footprint story to gift the family with come the holidays.

THE RIDE BEGINS AT 10:30 A.M. AT 7TH ST. AND JEFFERSON DR. SW. FREE. RSVP TO INFO@CHANGEHAPPENSINDEGREES.ORG.