What do you think children need to learn about the value of money? What do you wish you’d learned?

I am writing a series of kids books with the intention to teach the value of money.
Update: Yahoo! Answers Staff: This really is Suze Orman. See blog posting for more details:
http://blog.360.yahoo.com/y_answrs_team?l=16&u=20&mx=155&lmt=5
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