Designating permanent privacy levels to placemarks

I am a pretty prolific BrightKite user and tend to chronicle my comings and goings pretty reliably. In most cases, I don't mind sharing my exact location with the world, but the exception to that is when I'm home; I don't want to broadcast my precise home address. Other than manually setting privacy before checking in at home (and subsequently setting the privacy level to 'public' before checking in somewhere else), is there a way to designate that a specific location is *always* private?