All your advice is good Jambutty, but could you not have held off a little too, whilst the photograph was taken of you in your avatar ..
Lilly: the smoke in the house is a good incentive, particularly as I have just had downstairs newly decorated and I keep looking up at the ceiling to see if it is turning yellow yet.
As lots of my friends smoke too, I would not stop them from enjoying a cigarette in my home though and ban them to the garden on a cold winter's day. Do you ?