There are few things I like in life more than our dogs. When our gentlemen grew up & moved out of the house, I was gleeful to see them go & grow up in their lives. However, the apartment was immediately too quiet with them gone. Sure, I consistently had a dog, although I found our a single little guy was honestly lonely without the gentlemen here too. I had consistently counted on the gentlemen to keep the dog supplier while I was at work, or take him out play with his puppy friends. So our solution was just to get more dogs. I’m fairly active so I knew I could keep up with them & provide them plenty of exercise, so long as the dogs had each other as friends too, but now I have more than two dogs & they are all as gleeful as they can be. However, all of these dogs does a number on the house. The two of us have to vacuum & mop a lot more often, & we have to change the Heating & A/C filter almost twice as much. The first year of this, our heating & cooling plan was giving us problem, so I called the heating & A/C supplier to take a look. They found our ductwork was clogged with pet hair & recommended I change the air filter more frequently. Thought I had been doing it once a week, this isn’t enough when you have as numerous dogs as I do. Changing the air filters out every other month keeps the pet hair in the filters & not in our ductwork.