I’ve been off them before and started again a couple of years ago as the missus smokes and I just fell back into the coffee and smoke on the balcony routine.
I’ve been off them since I came back and will most likely stay off them even when I go back as we’ll be moving to Bodrum. For me the change of environment helps, the habit for me isn’t necessarily the cigarette but the place I smoke it ie: balcony, when taking the dog out etc. I never smoked walking up the road or driving the car.
I never get cravings, mood doesn’t change, I keep the same eating habits etc, a lot of it seems to be psychological rather than a genuine need for nicotine, at least in my case.