I live in CA and need to run sprinklers while gone in the summer. Other seasons I generally can get by for a while. I have irrigation on a separate valve so I turn off house water when out of house even for a night. I've seen far too much damage to others homes over the years from plumbing leaks, ice maker leaks, etc.
The neighbors know when I'm gone and know how to shut off the irrigation water. The dependability of irrigation system has been my biggest hassle when traveling. Stuck valves, broken heads-occasionally I've had to return early for that reason.
I also have Zwave system I can control lights, irrigation, and audio from my phone and computer. I can randomly hit different lights to attempt to make house look more lived in.
Gas I'll shut off on extended vacations.
IMO the biggest issue (in this area) are water leaks in the home.