Kris at Weird, Unsocialized Homeschoolers has an excellent post about her 30 Days of Gratitude. Nothing unusual; a lot of people do that in November. But read a little further down and look at the Gratitude Tree.
We focus on thankfulness at our house quite a bit, and each night at bedtime we all give our Yay of the Day, something excellent that happened that day. More than one is good too. On those really craptastic days where you want to throw in the towel, it's a good reminder to look for the little things that really DO matter. On the good days, it's easy to see how blessed we really are.
I love the added visual of the Gratitude Tree. The trio of hearing/reading/writing will plant that gratitude a little more firmly in their hearts. I am shamelessly stealing it for our house. Thanks, Kris!