Now I know many people think it is a waste of money, but for a holiday-homer like myself I thoroughly recommend using Michela & Egidio's property management services.
www.agencyservices.it/english.htm
I for one do not want to arrive at my home-from-home to find either electricity/water/&or gas has been disconnected and then spend my precious holiday waiting in queues, finding I haven't the relevant paper, going home to find it, re-queuing... For a maximum of 16.6 euros a month all the hassle, aggravation, and time wasting can be avoided.
What's more, they are very supportive, especially Michela with her great English & Egidio with his ready smile, not only in setting up my bill payments saving lots of hassle, but also doing additional things over and beyond such as talking to my neighbour by phone due to a problem with my roof.