I am very slowly working on finishing my basement and turning it into a cigar lounge/hangout. Trouble is, when I smoke down there, the smell tends to come up into like half the house. I will eventually be getting a smoke eater or ionizer or something, but what else can I do to prevent this from happening? The ceiling in the basement is pretty much just insulation. I have considered using that sheet plastic that comes in a roll on the ceiling before I put ceiling tiles up there. I would think that would help. Anyone else have any other ideas? I am trying to do all this on the cheap whenever possible.