But as she watched the show’s stars proudly hoard their deeply discounted prizes, Steinberg said she had a thought: What if she could coupon with a conscience?

On that day about four years ago, Steinberg’s show of choice was “Extreme Couponing,” the cable program that follows discount-obsessed shopaholics who go to supreme lengths to buy ultra-cheap items regardless of whether they need them.

Before Hannah Steinberg had a day named in her honor and was recognized by a US senator, the Tufts junior was just another high school student watching reality television.

These days, the 20-year-old Steinberg has a registered charity that has donated more than $100,000 worth of household items, canned goods, and electronics to homeless shelters and hospitals by using the couponing tricks she observed on the show.


“This has become something so much bigger than I would’ve imagined, for me and for the families,” Steinberg said. “What I’m doing is very simple.”

Simple for those in the know.

Stores, private couponing companies, and online marketplaces frequently offer discounts on the same items in any given store, which savvy shoppers can combine, Steinberg said.

What “Extreme Couponers” do is meticulously keep track of who is offering which discounts, and then buy in bulk to maximize each dollar saved.

Steinberg uses the example of a chocolate bar priced at $1.19.

If she finds a buy one, get one free coupon, and pairs it with a buy two, get one free coupon and a $4 off any $10 purchase discount, Steinberg said she can purchase 30 chocolate bars for only $6.

To fund her purchases, Steinberg solicits donations to Our Coupons Care, her federally recognized nonprofit charity. By mixing that money with her coupon magic,

Steinberg said she can make “every dollar count for four to five dollars.”

Steinberg, a native of Scarsdale, N.Y. who is majoring in psychology and child development at Tufts, said she has been amazed by all the support she has received.


“There are people who’ve done much bigger things,” Steinberg said.

Her mother was less modest.

“I’m very proud,” said Ruth Steinberg, a New York City-based financial adviser. “It’s amazing, and she’s stuck with it for a long time.”

Our Coupons Care has been recognized by three elected officials from New York, US Senator Kirsten Gillibrand and US Representatives Eliot L. Engel and Nita M. Lowey.

On June 28, 2012, the county board in Steinberg’s hometown proclaimed it Hannah Steinberg Day throughout the region.

Steinberg has been juggling her schedule at Tufts University with the coupon program. John Tlumacki/Globe Staff

Steinberg said she was embarrassed by the hoopla surrounding that day, but her mother had to continually encourage her to bask in the attention.

“I’ve gotten so much more than I have been able to give,” she said.

Ivan Smith, a youth coordinator at Coachman Family Center in White Plains N.Y., said he believes Steinberg’s estimate of how much she has donated is too modest, and that she has given nearly $100,000 worth of items to his shelter alone.

Smith has advised Steinberg since she was in high school, and helps her identify needs of the shelter, which houses about 175 children.

He said Steinberg’s donations have made a “significant” impact on the lives of the shelter’s families.

“She’s always apologetic because she wants to do more,” Smith said. “ And she doesn’t want any recognition of it.”

Since coming to Medford for college, Steinberg has juggled her time-intensive coupon project with the trials of collegiate life.


Even so, Steinberg has also donated a toiletries and household items to Boston Children’s Hospital and has led a student group at Tufts through a $4,000 donation project.

At school, Steinberg said her friends help her stay atop of the discount world, even as she grinds out 20-page papers and crams for finals.

Sara Taxman, a friend and a self-proclaimed “big Hannah fan,” called Steinberg the “positive Energizer bunny.”

“She’s just spreading her intellect and her positivity everywhere,” Taxman, a senior at Tufts, said over the telephone. “She doesn’t stop.”

Steinberg said she tries to organize a donation drive at least once a month. She laughs at her high school efforts, when a 20 percent discount made her ecstatic.

Now, Steinberg saves far more through her socially conscious version of television’s “Extreme Couponing.”

As of now, no reality show is in the works.

Astead W. Herndon can be reached at astead.herndon

@globe.com. Follow him on Twitter @AsteadWH