https://www.youtube.com/watch?v=FBArbv6ZEdM

Vinegar is the superhero of stain removal (and cleaning in general!). Try these different formulas for homemade carpet cleaners to remove a variety of common stains:

• Rub light carpet stains with a mixture of 2 tablespoons salt dissolved in 1/2 cup white vinegar. Let the solution dry, then vacuum.
• For larger or darker stains, add 2 tablespoons borax to the mixture and use in the same way.
• For tough, ground-in dirt and other stains, make a paste of 1 tablespoon vinegar with 1 tablespoon cornstarch, and rub it into the stain using a dry cloth. Let it set for two days, then vacuum.
• For spilled paint, use a solution of 1 1/2 teaspoons vinegar, 1 1/2 teaspoons laundry detergent, and two cups water; sponge away the paint before it sets in and rinse with cold water.
• For fruit and fruit juice stains, mix 1 tablespoon laundry detergent with 1 1/2 tablespoons white vinegar and combine with two cups of water. Work the solution into the stain and blot.
• For coffee and tea stains, combine equal parts white vinegar and water and blot the stain.