Jon,
I really hope you didn’t mean a whole quart of dish soap 
We have always used dry laundry detergent and Calgon bath beads, couple spoons of each and 3-4 gallons of water and the bouncy ride home does the rest. Have never used chemicals and never had a smell issue and especially that nasty chemical smell.
Mom says that if the site doesn’t have everything up to and including WiFi we are Boon docking, and she doesn’t do that anymore. Probably goes back to our early days and hunting/fishing trips when the gear was an ice chest, camp stove, and a sleeping bag in the truck bed, she was a good sport for quite a few years.
Our latest trailer the Wildwood FSK, 179DBK and our mods.
A screen shot of how the bunk area looked from the factory, I didn’t take before pictures because I wasn’t planning a build log around this project
Our modifications to the area.
The top bunk turned into an 18 inch wide wrap around shelf and the bottom bunk was cut back to 28 inches wide for the dogs bed. We have a Mini Aussie and a Border Collie that love camping. The wardrobe on the right has a cubby hole under for a step stool to be stored. The stool makes it easy for the little dog to jump to the bunk and gives us better access to the storage bins on the top shelf.
The cabinet we added to expand the kitchen, where it sits was just dead wasted space.
At least a dozen other small modifications and additions have been put in place, the last major one I am working on now is pullout drawers for the storage spaces under the dinette seats, instead of having to lift the cushions and the plywood sheets to access things.
