The best way I've found to get fur off a cloth couch is to use a pair of rubber kitchen gloves that are slightly damp. It works really really well and it's super cheap. We also cover our couches with an old sheet with some towels underneath to help catch any slobber. When company comes over we just take them off. But we other wise just live with the dog hair (and in our case cat hair). It's the joys of pet ownership!