What’s the best way to become more productive at work? Work less. At least that seems to be the finding of a recent pilot project. “Workers at Microsoft Japan enjoyed an enviable perk this summer: working four days a week, enjoying a three-day weekend — and getting their normal, five-day paycheck. The result, the company says, was a productivity boost of 40%.” (So why stop there. If my math is right, the company could achieve a 200% productivity boost if workers took all five days off.)