Remove any cushions or pillows from the couch. Vacuum the couch thoroughly with a brush attachment.
Apply a small amount of fabric stain remover to any stains on the couch.
Fill a bucket with warm water and add 1 tbsp. of dish soap or laundry detergent.
Dip a cloth or sponge in the bucket and wring it out. Wipe it over any dirty areas on the couch. Rinse the cloth or sponge in the bucket as often as necessary.
Empty the bucket and refill it with clean water. Dip a clean cloth or sponge in the water and wring it out. Wipe it over the couch to remove any detergent residue.
Press a clean, dry towel to the wet areas on the couch. Allow the couch to dry for two hours up to a day, depending on the amount of water used to clean.
Place the cushions or pillows back on the couch once it is dry.