Caution is always advised. Dublin is not particularly well-geared with facilities to cater for people with disabilities. Social customs are generally relaxed in Ireland although there are occasions when it is wise to be 'in the know'. For instance, when meeting friends for a few drinks dodging the 'rounds' system and leaving before it's your turn to buy won't win you any popularity points. A land of major cultural, social and economic change, Ireland is now a young, vibrant and economically successful country but there is a downside to the economic growth seen at its worst in traffic filled roads, spiralling house prices and what is seen as an unfair distribution of wealth with the rich getting richer and the poor poorer.
Motorists drive on the left side of the road.
Roads have improved a lot due to EU grants but in some areas it is still wise to be on guard for the potholes. Mail to all European countries goes by airmail automatically. Airmail rates apply for other countries. Ireland works off a flat three-pin plug system unlike most other European countries. Conversion adaptors and voltage converters can be bought at airports and ferry ports or in most hardware or pharmacies.