Car hire itself can be cheap, but the real cost comes when paying for insurance. There is a cheaper option in the form of excess hire insurance taken out in Ireland, and prices can be as low as €2.99 per day. Read More Caitríona Redmond: What to consider when booking a summer holiday this yearRegardless of the type of car hire insurance you take out, there are some best practices you should employ every time. Countries can differ on how long before the expiry they require for a rental car, so it’s worth checking in advance. Make sure your travel insurance covers any loss due to fire or flight cancellations too.