Rewarding kids with things they get to do instead of things they get to have. When they do something good, they pick from the jar and get things like to stay up a little later or play outside a little longer etc.
Chores by age, listed from age 2 to 18. Makes me feel somewhat better w/ the last comment about when she only had 2 children it was easier to just do it herself. I have always been in that position, but my son needs to learn these!!