Work expands to fill the time you give it. That's not a productivity cliché, Parkinson named it more than seventy years ago, and Bryan and Locke confirmed it in the lab. Give someone twice as much time as they need, and they'll slow down to fill it. Timeboxing is the antidote: hard-edged windows on the calendar for the work that actually matters, then a stop time. A three-stage guide to starting solo, calibrating against your own history, and bringing your team along without