I just cleaned some stuff with bleach, and immediately I got memories of France. The French prefer using bleach to clean things, so the smell of it is everywhere. Each country has different dominant cleaning product, when I come back from Mountain View, my clothes smell like the US for a few days. While there are many things on the internet, I could not find a map of the cleaning products, of the smells. It’s a shame: with such a map, one could build a selection, and organise travels in one’s mind just by switching the bottles used for laundry or cleaning the floor.