Princess and the plea: negotiating the city

Lara Davidson has never had to change a broken headlight. Nor put together an easy-to-assemble desk. Nor hook up her home entertainment center. She has always found someone to do it for her. What Davidson, 27, learned early on was that with a little negotiating, she could be more successful in her day-to-day maneuvering than her more meek pals, who were too intimidated to ask for special attention.