British Isles, Chanel Islands, Malta and Cyprus all drive on the left hand side.
Taking my car aborad has no problems and I soon get used to driving on the wrong side.
The problem is on sitting on the wrong side as well. When I come to the USA I hire an automatic so I dont need to right hand shift and for the first day I have L and R on the back of the appropriate hand to remember when the family shout directions at me
http://www.rmf9.com/whichside.htm