The question is what shops you want to visit ?
I traveled to dumdrum to Tesco at night when I run out of milk etc.. :)
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Drive to it — M50 southbound to junction 13 and then down the Ballinteer Road until you hit the 4th. roundabout and Robert is your mothers brother ;)
I suppose it might be better instead of changing to one luas and walking driving sounds better sound for the help