I have one dog and 3 cats...all indoor pets...and a house that is less than 1000 square feet. So one dog is plenty right now. Actually, when she was a puppy, I almost regretted my decision to get her because, unlike my first poodle who was a very quick learner, Gigi took forever to get house trained. I can't even count the number of accidents I had to clean up. Some days I was in tears because of her. It doesn't help that I'm older now and didn't have much energy for a puppy (in retrospect, I should have bought an adult dog). But now those days are behind us, Gigi is perfectly potty trained and done with chewing everything in site. Life it good!