Although study leave in the run up to exams is traditional, and benefits well-motivated, organised students, recent thinking suggests that it is not the best way to improve results. Some students are required to do housework or help in the family business rather than studying. Many others spend time playing computer games, watching daytime TV or hanging around with friends instead of revising. Schools which provide in-school study areas with teacher supervision and a programme of booster revision sessions are getting more A*s and fewer Ds. It is time to ditch study leave.