Bill Smith and Lisa Ling

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If you are thinking about adopting a new pet, make your first stop the local shelter or animal rescue office. "You can find any kind of dog you want, any age you want, at a shelter or rescue," Oprah says.

Consider these facts when adopting a dog.

Sometimes, what you see isn't always what you get when it comes to that doggie in the window of a pet shop. "You can be deceived when you see these cute puppies in the stores," Lisa says.

If you are looking for a specific breed of dog, Bill says you're likely to find one at a rescue. "A third to 50 percent of the animals in shelters, depending on the location, are purebred dogs," Bill says. "The rest are great designer mixes." Bill says there are also breed-specific rescues throughout the country.

What you need to know about animal shelters and finding responsible breeders.

For people who would still like to use a breeder, Bill urges you to find one that is responsible. Quality breeders care about the quality of life their dogs will have when they go to their new homes and will often interview you about your home. "One of the things that makes them a responsible breeder is they take their dogs back even if it's six or seven years later," Bill says.