Editor's Note: This story originally appeared on The Penny Hoarder. If you grew up with a handy adult around the house, chances are you’ve been familiar with WD-40 since you were a kid. The magic water-displacing, petroleum-based spray was created in the 1950s to prevent parts of the Atlas Missile from rusting. But these days, it’s a common household item that has dozens of uses — some well-known…
Kristin Kurens (The Penny Hoarder)
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