Oddly, I don't remember gratitude being mentioned much at all except when it was being used in prayers recited by rote or as a way to silence the expression of preferences, desires and dreams.
This is no doubt why I've always been a little leery of gratitude practices, although I express gratitude where it arises spontaneously (and it does so often.) I suppose this early conditioning suggested to me that I could not simultaneously be grateful for what is and still have hopes and dreams for myself and the world. I did try to deliberately counter this with my sons when they were young by having us do a practice of sharing three prayers before their bedtime: one for something in our day for which we were grateful; one for someone else in our thoughts and hearts; and one request for something with which we needed help.
I'll start (and two come to mind):