Closing open loops

Select an app, or open a text file, or use a physical notebook, and dump every open loop that you can think of in one place, not in multiple apps. Add new items as soon as they float into your mind.

The payoff is that you won't have to obtain all your peace of mind from completing every item on the list, as the list is certainly too much for one person to handle. Faithfully capturing open loops will bring an instant dose of relief.