Avoiding 'blackout shopping' could be the key to saving money, according to a 'frugal living' YouTuber

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Woman confused while grocery shopping
A woman shopping for groceries (stock photo).

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The billionaire who created duty-free shops and gave away his wealth liked to live frugally, from flying economy to driving a used Volvo

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chuck feeney
Chuck Feeney in his daughter's apartment in New York, on September 25, 2007. Feeney is known for giving away nearly all of his fortune.

Liz O. Baylen/Los Angeles Times via Getty Images

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