Art, Shopping -- The open studios of this year's SoWa Art Walk happily overlap with the open-air crafts, fashion, and produce of the SoWa Open Market on its opening weekend. The market is at 540 Harrison Ave. (10 am-4 pm), and the art is all walkable from there (11 am-6 pm). Beer, Cheese -- A craft beer tasting at Brookline's Wine Gallery will be enhanced by the presence of cheeses from Westfield Farm. Drinkcraftbeer.com has......