By MARSHALL HEYMAN July 25, 2013 9:03 p.m. ET http://www.wsj.com/articles/SB10001424127887323610704578628200458852408 ASTRID STAWIARZ FOR THE WALL STREET JOURNAL Everyone who works the party circuit—whether behind the cameras or in front of them—will tell you it can get tedious. Nobody wants the same entertainment, the same hors d’oeuvres, the same people. That’s why party planners exist: to shake…