What is the best way to quit smoking?

My wife has smoke for 8 years and she is wanting to quit but, after a day or so she is back to smoking..I smoke myself and I am hardly home I am a truck driver..I told her that I will not smoke around her if she really want to quit but, u know she is still picking up a cigarette..So, if u can answer the question please I will take any advice u can give me for my wife..What is the best way to quit smoking?

I have quit smoking. How to assess the damage that may have been caused when I smoked?

I have smoked about 10 to 30 cigerettes for about 8 years. I have quit from today. Though I don’t have any physical complications so far as a result of my smoking, I want to know if there is a way to see what kind of damage my previous years of smoking may have done to my system.

And if any, would it be 100% reversible ?