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This final note today, in which the tooth fairy and inflation both figure prominently -- so parents, please act accordingly.

A new survey out by Visa shows the average kid in this country gets $3.70 a tooth. 

There are some regional variations: When the tooth fairy visits the northeast she goes a little crazy: $4.10 a whack.

Kids in the Midwest get stiffed, relatively speaking, at $3.30 per tooth.

Follow Kai Ryssdal at @kairyssdal