My wife and I are flying into Dublin on Dec. 18th and want to stay at a cool historic B@B for 2 nights. Are there any with shuttle service from the airport or should we just cab it. We will need a rental from the 20th till Jan. 3, but I can't get the rates on CDW or Super CDW on the internet which people recommend to get. I'm a little nervous about the roundabouts and worry about getting out of Dublin. Can a B@B or hotel have car rental tips?