We installed a whole house generator a smaller 8,000 watt unit that has the automatic transfer feature feature I have 10 circuits that transfer in during a power loss. I leave the furnace on 52 during our absence in the winter and 80 during summer absence. I shut off the water heater and drain the water at a low point faucet in the basement. Everything that comes to us in the form of a bill comes through an email. all my reoccurring bills are set for auto pay. I have set up on credit cards and bank withdrawals, alerts that come to my cell phone so that I know anytime a payment or withdrawals are made. I do not carry a lot of cash as ATM's are everywhere and my bank reimburses all fees. I found a lawn cutting company that will cut the lawn at any amount if times I want. My neighbor across the street keeps the driveway clean and we keep him stocked in goodies from our travels.  I alert the police dept when we leave. For longer absences we do the temp change of address for short jaunts we just have the mail held at the P.O. We have close friends that check the house from time to time.