A user on Reddit struck gold — or in this case, copper — with a jaw-dropping find at a local sale that was advertised in a newspaper.

For a measly $100, they purchased an entire 12-piece set of Mauviel copper cookware, plus mini single-serve pans, a colander, and a wok. The 12-piece set retails exclusively on Williams Sonoma for a whopping $2,295.95.

The lucky user shared pictures of their score on Reddit under r/ThriftStoreHauls.

"My mouth literally dropped when I saw." — Photo Credit: Reddit

"I almost felt bad buying them at this price," they wrote. "Fortunately they will get a lifetime of use and enjoyment."

While discoveries like this can be once-in-a-lifetime deals, it isn't uncommon to find low-price gems at local thrift stores, flea markets, and garage and estate sales. The Cool Down has covered multiple instances of people who have scored unbelievable secondhand finds, including a shopper who found $20 vintage 21k gold earrings, another who found a pristine KitchenAid mixer 85% off its original price, and another who found three Patagonia pullovers for $8.99 or $9.99 each.

But thrift shopping isn't just for those searching for antique gems or name-brand deals. Shoppers can save big on necessities and everyday items, too. Plus, thrifting and secondhand shopping help keep these items out of landfills, minimizing waste.

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Even thrifting just a few items can make a huge difference in the amount of waste entering landfills and dollars leaving your wallet. TCD estimates that (just partially) shopping at thrift stores can save you about $75 every year, while also preventing approximately 20 pounds of clothing from ending up in landfills.

Fortunately for our planet, thrift shopping is trending. According to BusinessDIT, 16% to 18% of Americans shop at thrift stores, and 93% of Americans shop online for used items. Global data shared by thredUP also shows that the secondhand market is expected to double by 2027 and reach a value of $350 billion.

Posts like this one in r/ThriftStoreHauls are becoming more frequent, too, as more users are encouraged to shop secondhand so they can also share their miraculous finds — if they get lucky.