In every home you list, set up a very basic Linux web server with a wireless router. Configure the server with a local disk web page that has every possible view of the for-sale home, along with videos, etc, about the home. Basically, a web page with as much sales information as possible. For safety, the server isn’t connected to the internet or anything else.

Then on the sign, tell the driver how to access the wireless network from their laptop, and what home page to navigate to (or application to launch to see the videos). Bingo, you now have your own local electronic sales web.

The cool thing is, you bug the hardware for a few hundred dollars, set up a standard configuration for the web site, then just change the content when you move the server to the next house.

It kind of sounds like a business opportunity, in fact…