Interesting, Elrel.
My daughter's carpets are being chomped away at from the edges inwards, she won't use chemicals in case they poison the cat, even though a new cat is cheaper than new carpets. Joke.
I had a wardrobe problem and some of my vintage Laura Ashley woollens (waiting for me to be slim enough to wear them again) were being feasted upon. A magazine's advice column said have EVERYTHING dry cleaned. Yeah, like anyone normal can afford that.
There was another thread here about housework, where Borax was mentioned, non toxic, kills moths. I expect it is now sold out all over the parts of the world where Gransnet is read.