Things like turning the water off, or unplugging things... At minimum I shut the water valve and unplug pretty much anything I can. I'll usually set the thermostats to be a little more extreme than usual. Do you do anything?
Although flipping breakers could be faster, that requires wanting to unplug everything on the circuit, and having a well labeled breaker panel.
On one hand, yes, on the other hand, if your breaker panel isn't properly labeled, that'd be a good idea to do. Much easier to do when things are working than when they aren't or there's an emergency and you suddenly need to figure it out.