Tomorrow is Green Streets day in the Greater Portland area. It's a great day to wear green and walk, bike, take a bus or ride your horse to work (is that allowed in Portland?). Anyone who participates can score free java and other discounts around town. But the real prize comes in convincing more of your co-workers to ditch their single passenger vehicles too. Just like these good looking folks at the Council on International Educational Exchange did last month.

They had the greatest participation rate of any local business in July and, as a result, won a gelato party from Others! in Monument Square.

But when you're deciding how to get to work green, just remember not all alternative transportation methods are created equal. Some just happen to have a little added cachet.