Keeping a gratitude journal is one of the easiest and most effective ways to reap the benefits of living a life of increased gratitude.
There is no one right way to do it. Here are three simple ideas, all of which can work because the most effective way to keep a gratitude journal is simply the one that you stick with.
Go old school. Buy a notebook. It can be plain or fancy. It can be designed specifically as a gratitude journal with daily prompts or it can be entirely plain. It doesn't matter.
Go techie. There are many, many gratitude apps available. Personally, I like Grateful: A Gratitude Journal. It is extremely simple, provides prompts if you want them and gives you the chance to include photos, which I do from time to time.
Go no frills. Simply create a "note" in the note section of your phone and add a grateful thought each day.
Okay, now that you've committed to keeping a gratitude journal and decided how you are going to keep it, the next step is to develop a daily practice. Morning, evening, mid-day ... it doesn't matter as long as you find a way to create a habit. Decide what will work for you, set a reminder on your phone or calendar and begin to build the habit of counting your blessings every day.