As sellers of vintage clothing, Tennessee couple Sean and Nikki McEvoy are always on the lookout for cheap clothes, preferably stuff that's not been worn since the Carter administration. In 2014, they decided to swing by a North Carolina Goodwill store. There, Nikki spotted a "neat, high quality" college sweater from West Point Military Academy. And it was cheap! The duo only had to pay 58 cents for it. But maybe the people at Goodwill should've looked at that sweater more closely. They might have noticed that it used to belong to NFL coaching superstar Vince "The Bard" Lombardi.

U.S. Military Academy"I should probably sew my name into this so it doesn't accidentally get donated to Goodwill."

Once back home, Nikki took a peek and found a name tag which read "LOMBARDI 46" sewed into the neckline. Unfortunately, that name didn't ring a bell to her, so the sweater went into the pile of vintage clothes. It was only by sheer coincidence that a few months later, Sean was watching a documentary about Lombardi and saw the man wearing a familiar-looking sweater in an old picture. "Wouldn't it be cool if we had that exact sweater?" he wondered...

Ricki McEvoyWe would've never guessed these two don't have an encyclopedic knowledge of football history.

Yep, this 58-cent Goodwill buy was what Lombardi had worn while at West Point, where many agree he learned his famed style of coaching (read: yelling). With such a sporting relic in hand, Sean called the Football Hall of Fame to ask if they wanted to buy it, but they demanded that they donate it for free (because football is always about choosing morals over money). So he drove the sweater to a Dallas auction house, where, after they confirmed it was indeed oozing with the pit stains of history, they auctioned it off to a mega-fan for $43,020. That's a profit of over 10 percent! Maybe way over. We're terrible with numbers.

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The eight cans they dug up contained 1,427 near-mint 18th-century gold coins. The couple, who have remained anonymous for fear that their land will be overrun by the ghosts of old-timey prospectors, took their haul to an appraiser, who informed them that the Saddle Ridge Hoard was worth $10 million. One million of that was from one coin, a super rare 1866-S No Motto Double Eagle. "This will be regarded as one of the best stories in the history of our hobby," said Don Willis, president of Professional Coin Grading Service. Seeing as this hobby is collecting old coins, there probably wasn't a lot of competition, but still.

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There he sat in his workshop day and night, toiling in complete anonymity. He even gave clear instructions to his kin that after his death, all of his art should be destroyed. But getting rid of 3,000 paintings is hard work, you guys, so his descendants simply sold the cottage and left the art to rot in the garage.

But like with many great artists, Arthur's works became famous -- and more importantly, wildly expensive -- after he kicked the ol' paint bucket. This was good news for Schultz and Joseph, who eventually figured out that they had bought not only Pinajian's lair, but also his entire legacy. Altogether the collection has been valued at up to $30 million, which you may recognize as a bit more than $2,500. (At least a bit. Again, we're not great with math.)

Kirk Condyles/New York Times At least now he'll be known as the bargain basement Picasso.

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According to the forgetful big spender, the money was a cash inheritance from his parents which he had hidden inside the TV 30 years prior. In fact, he had hidden it so well that he had completely forgotten about it. He even gave the set to a buddy of his, who then spent decades staring at the most valuable TV in the country before dropping the busted old thing off at the recycling plant.

The man assured police that he hadn't realized the money was missing because he thought it was hidden somewhere else in the house. Which raises a question: How many secret stashes does this guy have? Is he just absentmindedly dumping old cereal boxes stuffed with small fortunes into the recycling every week? We guess the people in the neighborhood will find out when they start noticing the local hobo population sporting top hats and tuxedos.

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Alexander Calder, famed for his abstract wire sculptures, also created wild artistic jewelry for his celebrity friends. During the 1930s and '40s, debutantes preferred Calder's exquisite twists over any boring old diamond pendant. And Ifill's necklace wasn't some random Calder. It was one of his best, having been put on display at the Museum of Modern Art in New York in 1943.

Christie's Where did she find this thing, resting on a throne made of swords?

In 2008, Ifill went to the Philadelphia Art Museum, which happened to feature a Calder jewelry exhibition. There, she realized her gaudy piece of costume jewelry looked exactly like the valuable pieces laying behind the reinforced glass. She took the necklace to the exhibition curator, who had it confirmed as a genuine lost Calder. In 2013, the necklace was put up for auction, earning Ifill a whopping $267,750. Which is ... what? 20 percent more than she paid for it? 30? Why won't somebody help us? This is a serious problem.

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