It's very nice that you are teaching your kids, showing them how to keep the car clean at such a young age.
I'd like to suggest the Daily Blog community for this type of topics and OCD is for topics that don't fit in any other community.
Here's a guide I put together to help you learn about how communities work -> Communities Explained - Newbie Guide
Please don't delete any post with the purpose of reposting it in another community as that can be considered abuse! Leave this post here, you'll get it right next time.
RE: Cleaning the car with the children at home alone in preparation for departure