Joe Binder, who runs the valet at Mario's Restaurant in the Bronx, just turned 102, and he has no plans to give up his gig of 25 years. "I still drive locally, and I just renewed my license, so I'm good until I turn 110 years old," he said. "My secret? I've been very nice to people in my life." To help him celebrate, residents of his Catholic neighborhood strung a huge banner across Arthur Avenue wishing him happy birthday.