Junior Ranger Programs- one of the cool, free things to do with kids in national parks. Ranger book at a visitor's center, complete it, and become Jr. Rangers, complete with a badge or pin from each park.
Love this idea: bored jar: if a kid complains of boredom they have to pick a slip & do the activity, good or bad. it might be going for ice cream, it might be cleaning their room. This would even be good for adults! I want a bored jar!