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