I think I'd rather do it positively rather than negatively, but still a good idea. This is a great idea!!! Do everything without whining, complaining or arguing. Every one has their own jar. Start off the week with a set amount of quarters in each jar. If they are caught whining or complaining, they lose a quarter. At the end of the week, they get the money that remains. Better than allowance!!! So smart and such a good lesson! Use later!!