Every day, when I get dressed, I put on something green. It's a joke around the office that, if anyone sees me without green, I'll give him or her $100. Thus far, I've never had to make a payout. I have a lot more green items of clothing than $100 bills.
Green is my trigger. During this busy holiday season, it's easy to forget to show gratitude and appreciation for the many blessings that surround us, and so, my challenge to you is to create your own trigger.