Random Acts of Kindness Board. Meant for a teacher to use in a classroom, but great examples to give your kids of things they can easily incorporate into their day to make someone else's day better. :-)
Anti-bullying activity: Group activity using toothpaste, a plate and toothpicks to demonstrate how you can't take words back. Love this! Mrs. O Knows: Did I Just Leave The Dollar Tree With That Many Bags?