I read this morning about an organization with the goal of reducing the chronic complaining in our society. Members get a rubber wristband that they must change from one arm to the other every time they complain about something. The goal is to go for as many days as possible without moving the band.
I suggested to the kids that we do this as a family: all five of us put on a rubber band and see who has to switch it the fewest number of times in a month.
On the flip side, another organization (or maybe it was the same one) encourages members to acknowlege the good things in their lifes - and do so often. Doesn't need to be anything major. You could be thankful for the weather, having a roof, or even clean air...
The kids were thankful for their nice family, nice house & good friends :-)