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Perhaps stories such as this do nothing for you, but they help me:

PATCHOGUE, N.Y. » A New York City cab driver is being praised for returning over $21,000 lost by a visitor from Italy.
Felicia Lettieri, who's 72, left her purse in a Manhattan taxi on Christmas Eve. It contained traveling money for her and six relatives.
Police told them not to get their hopes up about finding it.
The cabbie drove about 50 miles, to a Long Island address he'd found in the purse. No one was home, so he left his phone number, and later returned with the money.
Lettieri's daughter, Maria Rosaria Falonga, told Newsday from Pompei, Italy that the cabbie also left a note.
He told her: "Don't worry, Felicia. ... I'll keep it safe."
The driver, Mukul Asaduzzaman, could not be reached for comment.
He refused a reward.