Marie Kondo, the author, recommends that you start by discarding and only then thoroughly organize your space in one go.
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Putting things away creates the illusion that the clutter problem has been solved.
Organizing all your junk better does not equal getting rid of clutter. And unfortunately most people leap at storage methods that promise quick and convenient ways to remove visible clutter.
For example, set goals like “clothes today, books tomorrow.”
We often store the same type of item in more than one place and when we tidy each place separately, we fail to see that we’re repeating the same work in many locations.