A society of people who only consume is not sustainable, whether your framework is ethical, historical, ecological, or spiritual. Just for one day, show that you know it. Skip the crowds, skip the midnight madness, turn off the corporate messages that we need STUFF to feel loved. Take a 24-hour break from being a consumer. Make something yourself, whether it's a great scene in your novel, a painting, a holiday card, or just turkey curry. Volunteer. Hug someone you love. Take a walk.
Participate by not participating.
*Thanks to cauldronfarm for alerting me to this.