Thanks to Jonathan Calvert of Houston, TX for passing along his tutorial for a quick and easy way to replace skies. Jonathan says, "I know there has been a hundred tutorials on sky replacement, but they all seem too "intricate" for fast turn around real estate pictures, especially if you have multiple outdoor shots on each house and you are shooting 10 homes per day. Therefore, I did a screen recording showing the method I do."
The other thing I like about this technique is that it works will most versions of both Photoshop Elements and Photoshop. It makes use of the magic wand selection tool which has been in all versions of Photoshop and PSE for a long while.
If you need skys to use with this technique don't forget the PFRE Sky library.