I thought this phrase — If you can’t find something, clean up — was a well-known adage. But random people I’ve queried have never heard it. So, I Googled it. Turns out it’s one of Gretchen Rubin’s many Secrets of Adulthood, which she introduced in her bestselling book The Happiness Project. I guess it made so much sense to me when I read it (years ago) that I thought I’d always known it!