Place the couch out of direct sunlight since sunlight can fade colors in the fabric. If the couch is part of an outdoor furniture set, move it out of the elements when not in use.
Vacuum the fabric with a brush attachment once a month or more frequently if you have pets that shed. Do not scrub the fabric with the brush, but just lightly pass it over the couch to remove dust and dirt.
Remove woven fabric piles with a sweater shaver. Keep cats away from the couch because cats like the loops in the fabric, which serve as a scratching post.
Mop up stains with a paper towel as soon as they occur. If the stain is absorbed, wipe the spot with a towel and soapy water of plain liquid dish soap. Rinse with a wet towel and let it air dry.
Keep shoes off the couch. Do not let your dog on the couch because it may track dirt onto the fibers.