Let's be honest: "SoCha" doesn't really exist. The presumed "South of Cesar Chavez" neighborhood is a whole-cloth invention (longtime San Francisco natives would probably call it "South of Army" if they called it anything), but the Revolution Cafe's little sibling is a friendly, unpretentious coffeeshop that offers fair trade coffee, a selection of wine & beer, and a variety of local musicians ranging from folk to jazz to classical.