Another anti-colouring book page
This seemed like the most useful thing you could design a household robot to do. Please note that I even went to the trouble of digging out a sci-fi-looking font for this one.
(Note - I will remove spiders from the room when required to (e.g. when the only other persons present are screaming women) and have grown very good at not looking flustered while I'm carrying them to the door in my cupped, ungloved hands, but that doesn't mean I'm not screaming on the inside.