Pets on a couch can ruin a couch, what with all that shedding, slobbering, scratching, and biting that those rascals like to do so much. It's tough to teach Mr. Peppers to keep his paws on the floor without feeling like a jerk for yelling at your cute little puppy, so maybe you should let technology be the bad guy on this one.

The Sofa Guard is a mat that you put on the couch your dog thinks is a bed, and when he jumps up on it emits a deafening 105 decibel alarm. It won't take more than once or twice to either scare your pooch away from all couches forever or make him go deaf. Sure, it might seem cruel seeing that dogs have highly sensitive senses of hearing, but it won't make you feel as guilty as squirting him with that spray bottle. Total doggie punishment will set you back about $37. — Adam Frucci

Sofa Guard, via Red Ferret