I'll probably avoid smoking in the house once me and the missus have kids, at least when the kids are home that is.I don't smoke in the house. I have small kids and I want them to at least become teens before their house becomes a smoking lounge. I smoke in the garage, which is heated and serves as my workshop/study/hermitage. I would like to smoke in the TV-room at night, but it'll have to wait at least 10 years. For the kids.
At our last house, I converted a two-story barn into a workshop downstairs and library/study upstairs. It worked great. I didn't have a serious ventilation system but a heat pump and lots of windows did a pretty good job of keeping it fresh.I don't smoke in the house. I have small kids....