Vegetable oil
 

Put a few drops of dish soap on each toilet and dray then Pour 1-1/2 cups of vegetable oil in each toilet, 1/2 cup in each drain - including clothes washer and disposal. The oil will float to the top and prevent any evaporation

Put a few drops of dish soap in the AC condensation drain line to reduce mold growth

We have been snowbirds/snow flakes since 2003. We have used services offered by TV residents. But the best so far are the professionals: The Empty Nest Program! They are very thorough! We will never have any other to look after our home in our absence.

All good info. Ours is our resident home in TV, but gone for about 5 mo's to WI. for the summer. In the past we had a really good "House Watcher" that came once weekly and always sent a email. He has since moved out of TV. But, now have permanent neighbors
that do the house watch. If you don't have that, would really try to find a reliable house
watcher. Things can go wrong. Definitely need to keep lawn watered and cut.
Just as an F.Y.I. we find it is easier to switch off the breakers for the rooms that don't need power, easier that unplugging everything. We leave frig. on low, but put empty items in to take up airspace. Thus far all has worked well for us, hope you have the same.

Rofl

Ok that is two responders advising “water off” and lawn sprinklers on. Somehow that does not make much sense to me, but I am getting old.

I have been advised to pour antifreeze in the bowel too, to keep the water from evaporating or being sucked out by wind across the vent.

Batteries
 

Thorough responses, but a couple ones I did not see are I put a trickle charger on my car and gas golf cart batteries. Do not leave an electric golf cart on full charge, it will ruin the batteries. Use the trickle charger port.

The answer to "should I leave my cart plugged in" depends on the manufacturer.

Club Car says leave it plugged in
Yamaha says remove the batteries and store elsewhere.
EZGO is contradictory, saying both, leave it plugged in and don't leave it plugged in.

Lead Acid batteries are not harmed by being continuously topped off. Lithium batteries do better stored at lower voltages. So the real answer is "it depends"

The bottom line is to check the manual on your cart for MFG recommendations.

Most newer areas have separate potable water and irrigation water supplies/meters.