No matter how many times one attends, it’s always exciting to see what otherworldly performances will happen at The Watermill Center’s Summer Benefit & Auction. “Tabula Rasa,” its 26th annual event on July 27th, switches gears by giving artists who donate auction works the option to receive a 20-percent commission versus its traditional swap for a gala ticket. 39 Watermill Towd Road, Water Mill; 631.726.4628; watermillcenter.org