I would also love to help you with any leftover beer you may have in the fridge
Seriously, when we leave to go back to CT, we basically turn the water off in the house. Keep the electric cart on a Battery Minder, set the humidistat for 60% which will prevent mold and keep the AC costs down low, turn the ice maker off, and secure all the outside and lanai furniture by placing them in the garage.
The house stays empty for 6-8 weeks at the most before we are back so we don't prep the toilets, sinks, etc. We keep the fridge at the same temp figuring that there it will not run as much cause the fridge is closed for that period of time.