This somehow reminds me of the stories when Tom Schelling was trying to quit smoking, using game theory against himself (or his other self). The other self in question was not the unconscious, but the conscious "decision-making" self in different circumstances. So that discussion is somewhat orthogonal to this one. I think he did things like promising to give a donation to the American Nazi Party if he smokes. Not sure how that round ended, but he did finally quit.