The key to happiness is spending your money on experiences rather than possessions, according to studies.
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Snoop Dogg makes $30,000 per week selling digital stickers of his face, joints, and more.
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The most expensive license plate is the number '1', bought by an Abu Dhabi businessman - costing a staggering $14.3 million!
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In 2002, there were no billionaires in China. In 2007, there were 106 billionaires.
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In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Jerry Seinfeld turned down US$5 million per episode, for 22 episodes, to continue the Seinfeld show for a tenth season.
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