This way you don't blow up a huge amount on pubs and bars. If you must drink out, check out Irish Pubs (bars that serve regular drinks like beer, whisky for a nominal charge) that are usually found in most places.
But if you are traveling in the interiors of the country, carrying your own booze is the best option.
So what are you waiting for? Pack those bags and get ready for a fun holiday.
Also read: How many calories does your drink have?