Only you can identify that! I have been trying to identify a way to quit smoking and I am still not able to figure how to do it. Reducing is not an option and the only thing that you can do is to quit completely. When it comes to smoking half measures don't work and you should not be looking for short cuts. Just buck up and quit! You will save yourself the trouble of several operations and other lung and heart related problems if you quit smoking now. Moreover you will feel much fresher, cleaner and healthier as well.