I am still not sure how I feel about it, but we use a thing called Rooster Money. Your kids get an account and a card, and you can give them some combination of

I am still not sure how I feel about it, but we use a thing called Rooster Money. Your kids get an account and a card, and you can give them some combination of a regular allowance and payment for chores. If you are strict in making their account the only way for them to buy stuff, it can help join the dots in their heads. As I say, I still squirm a little about this, because really they ought to do most of these chores without needing bribes, but you do what you must to survive.