A simple list can be a very powerful tool. When it’s used to keep track of things to get done, it’s easy to see your progress as items on the list are crossed off one by one. I use them both at work and at home, and it’s not uncommon to see a list of items on my whiteboard with a few of them crossed out.
Another nice way to use lists is as a checklist. If you’re meeting a milestone or executing a process, having a checklist will help ensure that you’ve met all the criteria or that the process you’re executing is consistent every single time.