Scoop the excess spaghetti sauce off the garment with a spoon. Turn the item inside out and rinse the back of the stain with running water.
Place a towel on a flat surface and lay the garment on the towel with the stain facing downward.
Add one to two drops of liquid laundry detergent to the back of the stain. Pat the stain with a clean cloth dampened in cool water. Pat for several seconds.
Let the laundry detergent soak into the stain for several minutes before rinsing the back of the stain with cool running water.
Place the garment back on the towel with the stain facing downward. Dampen a clean cloth with white vinegar and blot the spaghetti sauce stain with the cloth.
Rinse the back of the stain under cool running water. Apply a prewash stain treatment to the front of the stain and let soak for 10 to 15 minutes. Launder the garment as you normally would.
Scrape the excess spaghetti sauce off the carpet, carefully, with a spoon.
Fill a container with 2 cups of cool water and add 1 tbsp. of liquid laundry detergent. Mix together with a spoon.
Dip a cloth in the mixture and blot the spaghetti stain for several minutes. Start blotting the outer edge of the stain and work your way toward the middle. Continue to Step 4 if the stain remains.
Mix 1/2 cup of cool water with 1 tbsp. of clear, non-sudsy ammonia. Dip a clean cloth in the mixture and blot the stain in the same manner as before.
Rinse the mixture off the carpet with a clean cloth dampened in cool water. Pat the carpet dry with a clean towel.
Remove excess spaghetti sauce from the upholstery with a spoon.
Dampen a clean cloth with dry-cleaning solvent and blot the stain for several minutes. Alternatively, mix 1 qt. of water with 1 ounce of oxygen bleach and blot the stain with a cloth dampened in the mixture.
Continue blotting until the stain is no longer visible on the upholstery.
Dampen a clean cloth with cool water and pat the upholstery to remove the solvent or mixture residue. Pat the upholstery dry with a towel.