When we were first officers I found myself struggling to get everything done that was required. The corps was busy and we had a Thrift Store and Family Services. It seemed to me that the urgent was always pushing in on the important. I wrote to a man who I knew was very organized. He gave me some resources; like a copy of “The One Minute Manager”. He also gave me this thumbnail description. He suggested I set up my “to do list” and then prioritize it into three categories, 1. what I must do, 2. what I should do, 3. what I could do.
Must, Should, Could. That’s it. For a few years I kept those three words typed on a piece of paper in the center of my desk.
Stephen Covey explains it like this – do the Big Rocks first!