It's that time of year when part of the city leaves for Burning Man. For those of us that stay there's a small respite from the crowds. Shorter lines and a sense of calm even at the farmers market where you'd normally need to show up before 10 to avoid the crowds now you can sleep in and run errands before strolling into the market at noon with no lines. Busses feel spacious, there's no line at the post office or grocery store, and an overall sense of relief with the general ease. When the "burners" as they're often called return from their week+ at Burning Man they'll be just as refreshed as those of us that stayed and the symbiotic relationship with San Francisco continues.