San Francisco is known as the City by the Bay, but when you're there, you know it's so much more. From hippies to hipsters, environmentalists to vegans, San Francisco (or "The City," as the locals call it) is the most laid back, fast moving metropolis that there is; but it can pass you by if you don't try to tame it. Here are the top 10 apps any San Franciscan needs to make life run that much more smoothly. And if you haven't already, say goodbye to your heart: because you're about to leave it in the Bay.