Are Greasy Snacks Smearing Your Phone? Japan Has Found a Solution
 

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OSAKA, Japan—Some people fret over the health implications of potato chips. And then there are those who worry about what they do to touch screens.

Cleanliness-obsessed consumers are fed up with soiled fingers gumming up smartphones, computer mice and other electronica. “I used to eat with my hands and lick my fingers when I was small,“ said Tomoki Yoshino, 19 years old. “But one day, my game controller got all greasy, and it was really gross.”

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