It is often said that a dog is a man’s best friend, and rightly so. However, due to space constraints, many people are unable to keep a pet dog as they live in apartments or in the city. And if you’ve ever wished your dog could stay as small and adorable as the day you brought them home, you’re not alone. Many people are drawn to dog breeds that maintain their puppy-like size and charm throughout their lives. If you are one of them, then check out this list of some small dog breeds that stay puppy-size forever: