Most graffiti artists shun broad daylight – but not in Clarion Alley, San Francisco's open-air street-art showcase. You'll spot artists touching up pieces and making new ones, with full consent of neighbors and Clarion Alley Collective's curators. Few pieces survive for years, such as Megan Wilson's daisy-covered Tax the Rich or Jet Martinez' glimpse of Clarion Alley inside a forest spirit. Incontinent art critics often take over Clarion Alley's east end – pee-eew – so topical murals usually go up on the west end.