why not get cameras in your house (wired not wireless) and just sit up in bed and scan every room in the house? not expensive.
I just cringe when I hear about untrained people clearing their house. its very dangerous. then after your dead your wife and kids are next.
Get a dog. Clear your house only to get your people to safety. I know how to clear my house but if I have all my people accounted for I will not clear it if I don't have too.