There is no such thing as a free.....

If you are considering adopting or purchasing a dog in the future, it would be a good idea to consider the cost of initial investment and then maintenance:

Initial investment - $200-1500, depending on size and breed

Puppy vaccines, first year - $300 - 400

Spaying or neutering - $50 - $350

Annual physical exam and vaccines $85 - 125

Grooming (if needed) $175 - 300

HOUSING:  Puppies will need to be contained when no one is around.  If an adult dog doesn't have a crate, provide a soft bed in a warm, quiet spot   All dogs and puppies need pleanty of exercise every day.

CLEANUP:  Dogs need to be walked multiple times per day.  During bathroom breaks in public spaces, all poop needs to be picked up by their humans.  Most dogs shed so you'll need a decent vacuum.  On the plus side, no more crumbs under the table.

DIET:  Puppies will eat several times a day; an adult dog usually eats once or twice a day.  Foods vary widely from store-bought to homemade.  Visit your vet soon after welcoming home your new dog to discuss food portion sizes and nutritional needs.

KIDS: most dogs love to play with children, though play should be supervised.  Even the gentlest pup can snap if a child is too rough or abrupt.  a young child should never be left alone with a dog. 

LIFE EXPECTANCY:  Lifespans vary by breed.  In general, the larger the dog the shorter their natural life span.  A chihuahua can easily live for 15 years of more; a Great Dane may not live much beyond 8 years.