OK - other than health (although I thought that would be enough reason to dislike smoking)!!
Your hair, skin and clothes smell disgusting.
Your breath smells terrible.
Your skin looks tired and dirty.
Your house smells stale and dirty.
Curtains, soft furnishing and wall in your home discolour and look dingy.
You have to talk to people through a haze.
It is very inconsiderate to others who do not smoke.
You go out for a night out, taking time to look presentable and feel fresh, only to come home smelling like an ashtray.
Is this enough reasons for you? Well you did ask!