If you do not currently smoke, I'd recommend against starting. Once in a while, on special occasions, I'll head out to a social gathering with a pack of unfiltered Lucky Strikes. They're what our grandfathers smoked after a day filled with killing Nazis and Japanese. One Lucky Strike is pretty potent; I couldn't smoke more than a few per day if I wanted to.
I'll tell you about a largely overlooked method of getting that sweet, sweet tobacco: pipes. With cigarettes, the puritans are all "Eww, don't smoke cigarettes in my house, get out!" I've found that with pipes they change their tune: "Hey, that smells good. No it's okay, you can smoke in here."