Missions require that you initiate “projects,” which is my term for any work-related initiative that cannot be completed in a single session. Some projects you complete once and then are done, such as updating the sales copy on a product website. Other projects are ongoing, meaning they unfold without any clear stopping point, such as answering support queries from clients. Projects create many of the concrete tasks that take up your time during the day. It follows that limiting them is critical to limiting your overall work volume.