stole a page from my sister's playbook: marbles for money. every time lil miss does a chore without being asked, she gets a marble. at the end of the week, marbles are exchanged at a rate of five cents a piece. she gets to decide how much to give away and how much to stash away in her cinderella bank (saving up for cinderella lego). we're on week two and so far so good - much less arguing at chore time!