When you don’t get rid of things you aren’t using, you are blinding yourself to a critical part of the consumer experience: what happens to things when you’re done with them. When you have the habit of periodically getting rid of things you aren’t using anymore, your brain begins to create links between the beginning (buying) and the end (selling) of all of your stuff.

Tynan, Superhuman by Habit: A Guide to Becoming the Best Possible Version of Yourself, One Tiny Habit at a Time, 2014