Just had this seasonal reminder from iCarhireinsurance. Pretty straightforward really, if you are hiring a car over the holiday or after the holiday period find out more here
On the subject of car hire problems, there was an interesting article in yesterday's Observer "Car hire problems put drivers on collision course with rental firms - Questionable fuel charges, mysterious traffic violations, disputed dents – beware the add-ons that can cost a packet" - They do not mention taking out car hire excess insurance, however strongly recommend if you return a car when there is no one to check the vehicle in take photos. Read the article here