My first boss in the corporate world had a to-do notebook. It was a full-size spiral notebook like students use. She had it on her person at all times. When she arrived at a meeting, she opened it up and laid it on the table in front of her. When in her office, it was always open on her desk. That and her day planner were always in her hand or in front of her. They were her compass. (This was the mid 90s when we didn’t have smartphones.)
Here’s how she used the notebook — it was essentially one long running to-do list. She wrote each item on a new line, at the end of the list. When something was completed she marked a lone all the way across it (not just a check-mark in front of it). When it was time to turn a page, she copied every outstanding to-do item from the prior page onto the new page so every item still to do was always visible.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism