I am leaving for my place in Okeechobee, Florida Thursday. When I leave Indiana I typically set the heat at 56. I have a newer brick home, insulated well, plumbed with PEX. I also have a manifold for the plumbing, so I can turn off all of the individual water lines, which I do. When I designed the home we built in 2008, I intentionally designed it with no plumbing in exterior walls because I knew we would be in FL for the winters.
Bargains anywhere are getting hard to find, especially in FL. Just about anywhere in the FL peninsula you aren't far from water and good fishing.