Mary has discovered the core of her hoarding and it’s the family’s paper memorabilia.
Becoming Minimalist 12-week Uncluttered course
Sunk cost fallacy is the behavioral economic theory that I was referring to in my example of the shirt I bought and didn’t want to get rid of.
The Gentle Art of Swedish Death Cleaning, by Margareta Magnusson
Report Confirms No Need to Make New Chairs, The Onion, July 15, 2014