I met a new AA friend for a coffee this afternoon. We were talking about what really makes sobriety stick for some and not for others. Of course we didn't reach any real conclusions as these things aren't very predictable, but he reckoned at ten years plus sober that one huge factor is memory. He suggested that lodging memories of the worst you felt, the worst scenarios, psychological traumas or whatever as a reminder so that when tempted they can be dredged up is a real help. I agree with him and have as it happens used that 'tool' a couple of times over the last few days.