I don't even smoke in my own house anymore. I got sick of the yellow grime, and of having to paint every room, every year, and having all the drapes dry cleaned every other month.
I had built an air ioniser (a REALLY POWERFULL one, not one of these pittifull ones you buy at the store) in an attempt to keep the house from stinking, and it kind of worked, but it made the yellow grime WORSE as the smoke would get charged and then get sucked right to the wall and stick there. it does knock the smell out, the house smells like a hospital now. :-P
Now I have one room I smoke in, it was a bedroom, but I covered the wall with bookshelves and put a "Masterpiece theatre" style chair with a small table with an ashtray next to it. There's two fans in the window, one blowing in, and one blowing out. :lol: