This penultimate weekend of summer is shaping up to be one of its busiest. Find some end-of-season fun at: the Orton Park Festival and its After Dark Party, the Middleton Good Neighbor Festival, the King Street Block Party, and the Token Creek Chamber Music Festival; a new gallery installation by Julie Ganser and Jeremy Wineberg; Dane Dances and a Michael Jackson tribute party; and, more live music by Dan Baird with Mauro Magellan and Keith Christopher, Pale Young Gentlemen with Flatbear, Steez,