Cosmopolitan gives us 8 laid back Summer Dates: 1. Host a Supercasual Soiree It’s so easy — provide a few bottles of wine and ask each guest to bring an hors d’oeuvre. Perfect for a summer Friday night: Try a sauvignon blanc like Chateau Bonnet Bordeaux Blanc, $10, or Yellow Tail’s new pinot grigio, $7. [...]