A woman named Konmari is famous for doing this kind of thing for *everything*.

mistersquid · on Jan 16, 2017

I believe the woman to whom you are referring is named "Marie Kondo".

The NYTimes wrote up a fairly lengthy article about her in July 2016, which I've been meaning to read: "Marie Kondo and the Ruthless War on Stuff". [0]

[0] https://www.nytimes.com/2016/07/10/magazine/marie-kondo-and-...

EDIT: link information