Dunno what made me think of this just now. When I worked for IT in a school district way back in the 90s, a librarian told me she kept a supply of mouse balls in her desk because kids would steal them out of the school computers. What I remember about those balls was they picked up dust and crud off surfaces. Pretty soon optical mice came along and they were history.

  • Lovable SidekickOP
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    1618 days ago

    I forgot all about scraping those little rollers with my fingernail! It was strangely satisfying.