The three-jar method
The jar system is the oldest trick in kids' money for a reason: it turns saving, an invisible idea, into something a child can see and touch. Label three clear jars: spend, save, and give. Every time money comes in, from allowance, birthday cash, or a lost tooth, your child divides it across the three.
Clear jars beat a single piggy bank because the progress shows. A child watching the save jar fill toward a goal learns patience in a way a hidden number never teaches. Use real coins and small bills for young kids so the amounts feel concrete.
The split is not fixed. A five-year-old might put everything into spend and save and skip giving until sharing clicks. By the tween years the save jar takes a bigger cut as goals get bigger, and by the teens most of the money is theirs to plan. When the jars outgrow the shelf, the save jar graduates to a real account and the same habit carries over.