I have four, but I never have any dog smells. One thing I really love about Yorkies is they don't smell like dogs. It seems like dogs that have an undercoat have that "dog smell" even the day after you bathe them. My Yorkies smell sort of like stuffed animals, the same as my cats.
I use Oust air freshener, but that's basically just because I like the scent.
Are you noticing a smell yourself, or just wondering if other people do? From my experience, people who worry about their houses being clean and smelling nice usually have the cleanest and nicest-smelling houses. You're probably just being too hard on yourself