When we turned the air conditioner on, I noticed something in one of the front room ceiling vents. Sarah and I took the vent cover off and the following dropped onto the floor:
Frightening? Yes. It freaked me out a little so the next night I started prying other vents open. All the vents in the ceilings and walls of our place are painted over so I used a razor blade, screwdriver, and a hammer. They were all pretty gross inside but there were no other dirtballs. I can't help but wonder what else is in our vents that I can't reach. I plan to take the vent in my bedroom off next and then the one in the bathroom.
Anyway, just in case everyone thinks that I am exagerating at the size, here is a picture of it next to a pair of sissors.