Be the Greenspan of your community : The stimulus for this mill town turned artist’s colony arrived in the form of green bills bearing sketches of herons, turtles and trees. A few dozen local businesses banded together this spring to distribute the Plenty — a local currency intended to replace the dollar. Now 15,000 Plenties are in circulation here, used everywhere from the organic food co-op to the feed store to, starting this month, the Piggly Wiggly supermarket. Last popularized dur









