Your home is poopy? Yikes!
This reminds me of my mom’s first day of retirement. Her dog had left fæces throughout several rooms in the house that morning, so she spent the first part of the day cleaning that up. Afterward, if anyone asked how she was enjoying retirement, she could say that the first day was 
y. 
I don’t have any particular gadget to recommend, but the things @carverofchoice mentioned about monitoring water and electricity make me think of the Ting device. That’s not really an ongoing money saving thing but more of a potential early warning system for possible electrical problems.