I don't smoke, so have no idea as to how hard it is to give up.
But clearly the bad breath and clothes smelling of smoke issue, along with yellow teeth not to mention literally burning your money has all had little or no effect to make you consider stopping for good.
Not to worry OP, the good news is, if you're lucky (and I think you will be) you'll end the final 3-5yrs of your life hooked up permanently to a full size oxygen tank, equipped with several metres of air line connecting said tank to a mask that you can wear whilst watching TV, cooking, Ironing, bathing, eating (that's quite difficult) basically whatever you choose within the confines of your house. The bonus is that you can go out with a little portable tank, this godsend will help you keep your social life active (I think you get 2-3hrs of freedom with those - yay)
Sadly, as grand as these marvellous things are, eventually your lungs will simply fail and as you stand/lie there realising that air simply will not inflate your lungs and that you are in effect suffocating to death, use the moment to reflect upon the pleasure that those cigarettes brought you over the years.
I think we both agree its not such a big price to pay for the enjoyment of a cigarette.
Sadly for me, I witnessed the above first hand - Horrific doesn't even begin to describe it.