One of my friends used to write down how much he spent everytime he bought a pack of cigs and add the costs at the end of the month. In a year he realised he was paying way more for cigs than his tuition (He went to a good liberal arts school with decent financial aid), however you will still be surprised how much you spend on cigs if you just start adding costs. He quit a year ago. I don't know if this helps, but it helped him.