They were bored. Or worried about layoffs. Or tired of working hard for a meager raise every year. They got another job offer. Now they have a secret. A small, dedicated group of white-collar workers, in industries from tech to banking to insurance, say they have found a way to double their pay: Work two full-time remote jobs, don't tell anyone and, for the most part, don't do too much work, either. Alone in their home offices, they toggle between two laptops. They play "Tetris" with their calendars, trying to dodge endless meetings. Sometimes they log on to two meetings at once. They use paid time off -- in some cases, unlimited -- to juggle the occasional big project or ramp up at a new gig. Many say they don't work more than 40 hours a week for both jobs combined. They don't apologize for taking advantage of a system they feel has taken advantage of them.