My cat is an obsessive couch scratcher. I’ve tried a scratch repellent spray, I bought him a scratching post and he won’t even use it. Nothing’s worked so far. He just keeps doing it. I would really be open to any ideas you might have, he’s starting to ruin my furniture.
I tried to softpaws too when he was a baby, but now that he’s bigger, it’s almost impossible to hold him down to put them on or to clip his claws. Even with two people. He screams like we’re torturing him.

Try putting double-sided tape on the corners of the sofa for awhile. Cats hate that texture and he will probably stop. Try different textured scratching materials. You’re bound to find one he likes. When he goes for the sofa, immediately remove him to a scratching post. You can also try Soft Paws nail caps to make the scratching less destructive. Here’s an article on effective, humane scratching solutions.

http://www.pawsneedclaws.com/Cat_Scratching_Solutions.php