Take it from an ex-smoker - the best way to go is to buy a small cigarette-making machine that makes one cigarette at a time. You can then buy tubes that contain a filter and a can of tobacco. You arrange the tobacco in the machine, put the filter on the end, and slide the handle. The machine stuffs the tube for you. Tap a couple times of filter end to make sure tobacco is all the way to the end of the filter, light and smoke.
This method is cheaper and you tend to smoke less if you can only make one at a time.
Of course, quitting is not only the cheapest; but, healthier too.