In what ways can you teach toddlers about money matters?

Basic thing to do is give your kid his/her very own piggy bank. Then whenever he receives money, you can try offer your child three things to do with it: spend, save or share. If your kid wants to spend, let him. If he decides to save, agree that you can add a certain amount of money on his savings. If your kid shares (to a sibling), you can as well add more and let him pick if he wants to save it or spend it. By this way, you can teach your child the value of frugality--that it pays to save up. You are also teaching him to be generous. Of course, you should carefully explain the benefits of both saving and sharing. I think it's like hitting two birds with one stone :)