I love making New Year’s resolutions. Yes, January 1 might be an arbitrary date, but I think it’s good that we all have a cue to ask ourselves, “What would I like to change about my life? How could it be better than before?”

Most of us have a list of things we’d like to do better — and very often, those things involve habits. Exercise, sleep, fun, eating, relaxing, and so on.

In my book Better Than Before, I list all twenty-one strategies that we can use to make or break the habits that shape our lives. All the strategies are powerful and effective, but some are more universal than others.

Here are some of the most popular ones, to start you thinking.

1. Be specific.

Don’t resolve to “Eat more healthfully.” That’s too vague. What are you really asking of yourself? Resolve to “Eat breakfast,” “pack a lunch,” “stop eating fast food,” “cook dinner at home,” or “no more sugary soda.” That’s the Strategy of Clarity.

I did this with reading. I love to read, but I wasn’t spending enough time reading. So I resolved to “Quit reading a book I don’t like” (which changed my life), “Do ‘study’ reading on the weekend,” and I also monitor my reading — see below.

2. Monitor your resolution.

If we monitor something, we manage it much better. Just simply tracking how much you are — or aren’t — doing something will push you in the right direction. That’s the Strategy of Monitoring. With reading, I’ve started to post a photo on my Facebook page every Sunday night to show what books I’ve read that week. I find this very fun and satisfying, and I have to say, it also helps me push myself to find more time to read.

3. Figure out your Tendency.

There are Four Tendencies: Upholders, Questioners, Obligers, and Rebels. Take the quiz here. This is the Strategy of the Four Tendencies.

4. Give yourself external accountability. 

Now that you know your Tendency, if you’re an Obliger, to keep a resolution, give yourself external accountability. This is key. Tell other people about your resolution, work out with a trainer, take a class, do something with a friend, hire a coach.

Or start a Better Than Before Habits Group, where people hold each other accountable. Everyone can be working on different resolutions — what matters is that they’re holding each other accountable. To get the “starter kit” for people launching an accountability group, request it here. This is the Strategy of Accountability.

Note: the Strategy of Accountability can also be helpful to Upholders and Questioners — but it’s often actually counter-productive for Rebels.

5. Treat yourself!

This is the most fun way to strengthen your resolutions. When we give ourselves healthy treats, we boost our self-command — which helps us keep our resolutions. When we give more to ourselves, we can ask more from ourselves. But make sure they’re healthy treats. Food and drink, shopping, and screen time are often unhealthy treats. This is the Strategy of Treats.

6. “Don’t let the perfect be the enemy of the good.”

Thank you, Voltaire. If you break your resolution today, try again tomorrow. Try to use your slip-up as a lesson in how to do better next time. Although some people assume that strong feelings of guilt or shame act as safeguards to help people stick to good habits,the opposite is true. People who feel less guilt and who show compassion toward themselves in the face of failure are better able to regain self-control, while people who feel deeply guilty and full of self-blame struggle more. This is the Strategy of Safeguards.

What else? What are some strategies you’ve discovered, to help you stick to your New Year’s resolutions?

Gretchen Rubin is the author of the #1 New York Times Bestseller The Happiness Project—an account of the year she spent test-driving the wisdom of the ages, current scientific studies, and lessons from popular culture about how to be happier—and the recently released Happier at Home and Better Than Before. On her popular blog, The Happiness Project, she reports on her daily adventures in the pursuit of happiness. For more doses of happiness and other happenings, follow Gretchen on Facebook and Twitter.

Image courtesy of Court Prather.