First there was Black Friday, then Cyber Monday, then Small Business Saturday, but the newest shopping holiday — Buy Local Week — starts tomorrow, and we're digging the concept. The weeklong event, which runs from Nov. 25 through Dec. 4, encourages you Windy City shoppers to shop local businesses when you're crossing off your holiday gift list. According to the video above, featuring the very cool Kiran Advani, the fashion program director for the Chicago Office of Tourism, and Unwrap Chicago, if every household in Chicago would move $100 of its holiday budget from chain stores to locally owned merchants, it would add $25 million to the local economy. How amazing is that? I can't think of a better excuse to visit all of my favorite indie boutiques this weekend!