Someone has been picking at our couch. Every week the hole grows.
I found black and dark brown vinylish-leatherish stuff in the upholstery section at JoAnn Fabric Store. I couldn't decide which color was closest so I went with brown and cut it into a patch. The smallest cut they could give me was 2" but it seemed too small so I went for 4" and it was just right. I bought Bish's Tear Mender to glue the patch on. It was between the Bish brand and Dritz Liquid Stitch. I have a feeling I bought Dritz before and was really disappointed in it. So far Bish is holding up. (Edit: it didn't work on the leather/fake leather stuff after all)
I'm thinking I should have went with black vinyl now but I'm just glad it's done. Patches never quite match anyway.