They each have a chore hook with morning chores (green), afternoon chores (yellow), and evening chores (red), when they are finished with each chore they flip the card over on the bottom hook. When they do them with out being told, they get stickers on their MAN charts (that you see hanging around the chore cards). You can see the MAN contest here http://teachingtikes.blogspot.com/2011/04/man.html.
I don't pay or reward the kids for doing chores, their reward is they have a place to live, sleep, eat and clothes to wear, and if they are lucky...a few toys...ok they have TONS of toys, there is no fooling anyone is there? Since doing chores is being obedient they do get stickers towards being the MAN if they do their chores with out whining.