I rarely smoke in my house. Prefer not to have the stale smoke smell and it's better for me to get up and outside as often as possible, I think.
But, a few months ago I took on a project to help someone and it was a real pain. Lots of computer time and some aggravation. The helpee was over, saw me light up and said, "You really shouldn't smoke in your house." I responded, "I really shouldn't have offered to do this for you. As to the smoking... It's my house." We both got through it.