Tips for Choosing the Right Pets Dry Shampoo Unlike cats, dogs need our help to keep clean and fresh-smelling. In fact, most dogs seem to revel in being stinky! But if you put off bathing your dog, you'll eventually notice the characteristic “dirty dog” smell. According to the ASPCA, you should bathe your dog at least every 3 months. Of course, you may need to do so more often, especially if your dog spends a lot of time...