Early in my teaching career, I attended a professional development event. The only session I remember was one given by Alan Lakein. It featured his book How to Get Control of Your Time and Your Life. He proposed an elaborate scheme for making and prioritizing to-do lists. I don't remember most of the details, but making a daily list of things to do became a regular feature of my professional and personal life. A short piece in College Teaching and an interview, both on checklists, got me thinking about time management and how we use and don't use the time we have.