Bill Clinton caused a stir in Sag Harbor on Sunday. After buying razor blades at the 7-Eleven, the former president was mobbed at the Golden Pear on Main Street when he stopped for coffee and muffins. A couple of hours later, Rep. Anthony Weiner sat down with his new wife, Huma Abedin. The counterman walked over to Weiner and joked, “Please keep it down,” in reference to Weiner’s recent outburst on Capitol Hill over the stalled $7 billion bill to aide Ground Zero workers. Reports our source, “Weiner laughed and said, ‘I’m on vacation. You don’t have to worry.’ “