In the interest of family harmony, every pooch needs to learn his Ps and Qs (especially his Ps). Manners make the dog, and at Twin Cities Obedience Training Club, trainers have been helping dog owners instill those manners since 1945. TCOTC is a nonprofit organization and was the first dog-training club in Minnesota. Nine weekly 90-minute obedience classes cost $100--money well spent, considering all the money you'll save on things your dog doesn't destroy out of boredom or unbridled rowdiness. (For dogs already impeccably behaved, there are classes in popular dog sports like flyball.) The club uses positive reinforcement training, and its trainers all know that behind every well-behaved dog is a well-trained owner--people learn as much as pets do at TCOTC.