How much is community service worth to you? How about prison-like-wages of 35 cents per hour? That's the cost of giving five hours to community service in exchange for one free tall coffee from Starbucks ($1.75). Customers who fill out cards in Starbucks' stores pledging to volunteer five hours of time will receive one free tall coffee today through Sunday. It's part of Starbucks' plan to get in on Obama's inauguration good vibes. They've teamed up with the HandsOn Network in an effort to "raise