someone has a lot of kids, and no time to clean. They brought this to some car detailer who shared the photos on facebook

all it takes is work and cleaning supplies.

https://www.facebook.com/groups/617321618289389/permalink/3018710924817101/

I get a kick out of work changing something drastically for the better, whether it's mowing a lawn, or cleaning, and these before and after cleaning photos remind me of my posts from when I was detailing rental cars:

because a steam cleaner vacuum is a mighty fine tool when you are also using a heavy scrub brush and a liquid soap

http://justacarguy.blogspot.com/2010/10/wet-and-dry-vac-with-some-cleaning.html

for videos on cleaning vehicles this bad:  https://www.youtube.com/channel/UCAQHQEO4QpI5dXtr3vLoFCg