Hannah Steinberg is a 20-year-old from Scarsdale, New York who uses coupons to help charities. She became obsessed with the show "Extreme Couponing" when she was 14.

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Hannah realized they didn't use most of the stuff they bought. So she decided to do the same thing, but for a good cause. She saved a bunch of coupons, and got enough toiletries and canned goods to donate to a local homeless shelter.

When she shared the photos, people started sending her donations, and their old un-expired coupons, even some that are 20 years old. In 2014 she turned it into a non-profit called Our Coupons Care, where she and her college friends cut coupons, fill up shopping carts, and do monthly trips to donate the stuff they buy to shelters, hospitals, and schools. So far, they've donated $110,000 of food, toiletries, and school supplies.

"I feel lucky that I'm able to use my interests to help others," Steinberg said. "It's really fun for me!"

Read more at Today.