Do you know how many arguments we have at my house about leaving the toilet seat up? No, I mean, seriously... if my husband didn't also take the trash out every week, I might have kicked him out for it a LONG time ago :) That's why my favorite submission so far is the robotic toilet seat lifter/lowerer.
Powered by an Atmega328p processor, the mat can read a person's toilet facing direction and therefore determine whether the seat needs to be up or down. GENIUS.
Now if someone would only invent a robot to take out the trash... marriages all over the world would be a lot healthier :)