I'm also in the "What? Yet again no household tips?"-Faction. But this is still better, than forcing some into the story. But the author better haven't outgrown those nifty tricks. I'm here because I want to learn something.
Also: Just how long does it take to search a room for one person? I reread the chapter and they look a lot like puppets or killerbots on patrol. If you notice it, it's not just freaky, but downright terrifying. Braindead Gal zombies!