We have shown our house once.  (truthfully I am ecstatic about this...you try keeping your house spotless with 6 children. lol) God could and may just sell it with that one showing.  The couple have stayed in contact with us every few days to keep us updated.  Our prayer request is that God will sell it in His timing and that maybe just maybe I won't have to show it anymore!  Although we have had several phone calls in the last few days.