"They used gasoline and kerosene at one point on clothing? UGGGGGGGGGGGGGGGG
That's so gross and so dangerous."
In ancient times (well into or past middle ages) people saved and used urine for brushing teeth and other cleaning. It was the ammonia they were after and until a better process was created to produce ammonium hydroxide commercially...
From time oil was discovered and various refined petrol substances were marketed people knew of or were made aware of dangers. But in many instances there weren't many other choices available and or people couldn't afford them anyway.
Petrol in homes was far more common in both Europe and North America prior to WWII and in some instances well after. Oil lamps used kerosene, on farms there was often a supply of petrol to fuel various equipment and so it goes...
Hydrocarbons in various forms are remarkable cleaning agents with few to nil drawbacks of soaps. When latter was all there was for cleaning and laundry it presented many problems. Early as late 1800's laundry manuals for both domestic and industrial laundries recommended adding gasoline or kerosene to wash water in aid of shifting heavy soils. Yes, there was a stench from one or both that had to be dealt with, not to mention huge danger of using any petrol near open fires (which wash day often had if for nothing else to heat water or do boil laundry), but again when dealing with shifting heavy dirt or oily soils....
As it relates to subject of this thread rural or other households may not have had access to a local dry cleaner and or couldn't afford. So manuals and other advice early on gave directions for using benzine or gasoline for "dry cleaning" at home. This horrible advice again should never have been given out but there you are then for the times.
Yes, there were housefires. Yes persons were maimed, injured or burned to death, which in end helped put an end to ghastly practice thanks to concerted public safety and health initiatives to alert consumers against. In 1927 alone nearly 1000 women were burned to death by using petrol for "home dry cleaning"
https://www.google.com/books/editio...+Gasoline+at+Home&pg=PA18&printsec=frontcover
https://www.google.com/books/editio...+Gasoline+at+Home&pg=PA78&printsec=frontcover
https://www.google.com/books/editio...Gasoline+at+Home&pg=PA128&printsec=frontcover
Carbon tetrachloride was pushed as alternative to benzine and gasoline for home "dry cleaning" spot remover and other solvent cleaning uses around home. Being non-flammable under most circumstances it seemed as the modern logical choice. That lasted several decades until the stuff was considered a likely cancer causing agent.
https://en.wikipedia.org/wiki/Carbon_tetrachloride
Finally remember times and people were vastly different in past. Many housewives and others were illiterate if not ignorant and simply believed what they were told or learned, especially from back yard gossip.
OTOH even literate women and men simply believed what was written in print as gospel. Standards of journalism (such as they were) then meant books and other printed matter could freely advise use of dangerous substances and procedures such as dry cleaning at home with petrol.