When I was writing Better Than Before, a book about habit-formation, so I found myself asking, “What are the issues in my life that bug me, and how can I tackle them through habits?

One problem: nagging tasks. It’s a Secret of Adulthood: Nothing is more exhausting than the task that’s never started. I knew this, but nevertheless I’d accumulated a lengthy list of small, mildly unpleasant tasks that I kept putting off—in many cases, for months. Maybe years.

These tasks weren’t urgent (which why they didn’t get done), but they weighed on my mind and sapped my energy. As I walked through my apartment, or sat at my desk, the accumulation of these little chores made me feel overwhelmed.

Psychologists sometimes call a nagging, unfinished tasks like this an “open loop”: not urgent enough to prioritize, and not resolved enough to forget about. When you have a long list of open loops, you can start to feel a constant decision fatigue.

But how could I form a single habit to cover a bunch of non-recurring, highly diverse tasks?

How the Power Hour strategy works

I hit on an idea. Once a week, for one hour, I’d steadily work on these chores. An hour didn’t sound like much time, but it was manageable.

With this hour, I’d tackle only tasks where I had no deadline, no accountability, no pressure—because these were the tasks that weren’t getting addressed. That’s another Secret of Adulthood: Something that can be done at any time is often done at no time. But although no one else cared when I replaced my office chair with the broken arm, or donated my daughters’ outgrown clothes to a thrift store, it made a difference to me.

The fluency heuristic: Why the name matters

I considered calling this time my “To-Do List Time.” Then I remembered a term from psychology, the “fluency heuristic,” which explains that an idea seems more valuable if it’s easier to say or think. An idea expressed in rhyme seems more convincing, which is why “Haste makes waste” is more compelling than “Hurrying fosters error.” I decided to name my new habit “Power Hour.”

The name and the idea have held up. Listeners of my podcast, Happier with Gretchen Rubin, often cite Power Hour as their favorite tip.

The rules of Power Hour (and what to put on your list)

Power Hour is not for regular, recurring chores or tasks with a hard deadline. Only add a task to your list if:

• It has no fixed deadline
• No one else is tracking it
• It won’t get taken care of as part of another habit

Making my first Power Hour list was easy and almost fun; I get a weird satisfaction from adding items to my to-do list. I didn’t allow myself to add any task that had to get done by a certain time; I couldn’t use Power Hour for planning my daughter’s birthday party or buying airplane tickets (for some reason, I loathe buying airplane tickets), because I knew these tasks had to get done. And I couldn’t use Power Hour for recurring tasks, like paying bills or answering emails, because I have different kinds of habits to cover repetitive chores.

Power Hour was time to accomplish those one-time tasks that weigh on my mind, but could be—and probably already have been—indefinitely postponed. For instance:

• Make a photo album of our summer vacation
• Use up store credits
• Donate books to Housing Works
• Round up and recycle batteries and devices

It feels so good to cross a nagging task off the list. A friend once told me, “I finally cleared out my fridge, and now I feel like I can switch careers.” I knew exactly what she meant.

Power Hour is enormously satisfying, because I’ve managed to chip away at tasks that were draining me.

Power Hour vs. the One-Minute Rule

The joy of Power Hour reminds of another great habit that helps me manage the chaos: my one-minute rule. If I can do something in less than one minute, I don’t let myself procrastinate. I hang up my coat, put newspapers in the recycling, scan and toss a letter. Ever since I wrote about this rule in The Happiness Project, I’ve been amazed by how many people have told me that it has made a huge difference in their lives.