I like what cornered cat has to say on the subject of carrying your CCW piece around the house.
To me, it makes alot of sense, especially if you have other people in the house, and no matter where you go in your house (minus the shower and bedtime) you have your gun, and you *know* where it is.
Honestly I dont see this as being paranoid, certainly no more than stashing a gun in every room (which costs alot more... gotta have more guns).
I just keep my Makarov condition 3 in my pocket, whenever I get home I almost always change into gym shorts/sweat pants.