Ireland has a smoking ban. All pubs and clubs. Dancefloors are no exception. Unless they have no roof.
There was a dub and reggae night called Firehouse Skank, you didnt need to bring your own weed, you could just get fucked from the haze around you. But now its gone. It him them hard. But they had other problems too I think.
But overall I think its great. As a non-smoker I like coming home from a club or venue not stinking of cigarettes (instead, just beer and sweat

). Being in England recently reminded me how fuckin filthy it is.
Its created its own culture here. People go outside and smoke on the paths. Apparently its the
best place these days to score.
You occasionally get this ludicrous situation happening where people get snared for drinking after hours because of the smoking ban. People are becoming so considerate for non-smokers, that they'll go outside after hours to have their cigarette (therefore inkeeping with the law), despite the fact they're drinking illegally! Some pub down the country got caught about a year ago because there were people standing around outside at 4am having a smoke.
Dont stress about it. It'll all work out.