Marie Kondo pushed me, and Magnusson made me jump—that and having to fill two Dumpsters with junk when my dad died. Döstädning is a real Swedish word and a real practice: Going through your things while you’re still able, so your children aren’t left doing it in a week of grief and rental bins. Magnusson, who gives her age as somewhere between eighty and a hundred, works through it room by room — start with the attic, leave photographs for last because you’ll get stuck, ask people whether they actually want the dinner service before you leave it to them, and keep a box marked to be thrown away unopened. She’s funny and unsentimental, and the book is short because the job is simple and nobody wants to start. The best things in life aren’t free, right—so, why do you have so many things?