The scene was the Sag Harbor Chamber of Commerce’s May mixer, and Cindy Ward Capalbo, who runs a home and office cleaning company, was decidedly not mixing. Around the booth she shared with three other women milled a room full of real estate agents, salesmen, and business owners. She gestured to the women she was with, two of whom wore the company’s uniforms. “We’re reminiscing about the time we’ve had getting ready for Memorial Day,” she said.