What's the most useless invention that actually made somebody rich?

in asksteemit •  7 years ago 

Pay a dollar to see how many people paid a dollar. https://www.howmanypeoplepaidadollartoseehowmanypeoplepaidadollar.com
\They also have it in 1$ 5$ 20$ and 100$

This is the one i would choose, well the real question is how many can you guys come up with
in the comment section, looking forward to reading your ideas!

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