In many areas the use of air conditioners is over for the season.
If you have electric air conditioning and if it is not a heat pump,
then it may be a good idea to turn off the power to the unit. Many
systems have a heater circuit that is on most of the time. It does
not consume a lot of power, but it does eat some. Turning off the
power at the source to the unit will save this power until you need it
next summer.

Note: don't forget to turn it back on in the spring and don't try
to run the A/C for a day or two after you turn it on.

I also like the idea of killing any circuit that will not need
power for an extended period. A dead circuit is just a little bit
less likely to cause a problem.