Our house has been up for sale for about a month and a half. We've had a lot of traffic through the house including multiple showings a day sometimes. The owners have to be out of the house when the house is shown. So we never get to actually see the buyers. But I get curious. So I look for clues when we get back. And its amazing how much you can pick up about people by just looking at the trail!
Most realtors leave behind their visiting card as a courtesy to the owners to let them know they were in there. They thoughtfully turn off the lights and lock the doors behind them. One of them was even kind enough to snuff out a scented candle I'd left burning upstairs and left a note about it.
And then there are times when you get back to the house to see all closet doors open, every single light ablaze in the house, doors unlocked and no visiting card. I can always find out who the realtor was that showed the house but still, it almost feels like an intrusion. I caught myself thinking I wouldn't want such careless people to own my house because that's pretty much how they'd treat it too.
Our realtor told us that leaving back visiting cards is an old-school courtesy that's fast fading amongst the new crop of realtors. I did notice that most realtors that left their cards back looked middle-aged or at least old fashioned..:) A good thing, I think, in this case.