Carpet Stain Remover
A site member posted this.
"I use a lot of rubbing alcohol on my carpets to remove stains. The trick is to use 100% white cotton cloth for disposable rags. Cheapest way to get that is to buy sheets, and slice them up as rags."Alcohol is the same chemistry class of molecules as water and turpentine, called "solvents". They will put other stuff into 'solution', to include many solids.
"If you use a rag with color to clean the stain out of carpet, the color in the rag will be transported to the carpet.
"So, use white rags. You want color (of some undesired contaminants on the carpet) to be moved to the color-less rag.
"The toughest of all stains, and most annoying, is kids wax crayon on bricks.
The only thing I have seen work is steam. There are now, hand portable steam cleaners under $100. Its a real pain, to melt the crayon, and not get burned while trying to capture the drippings. Some folks resort to some very strong solvents. But even those barely phase crayon wax."
This sounds sensible to me.