Solution 1 - The Guilt Clip
If one resolved not to smoke that day/evening, the clip would be placed on the side of the pack, hindering its ability to open. This would serve as a reminder of the goal not to smoke set forth earlier. From there the person would have to make a choice as to how to proceed. When the smoker is on their way to an event or circumstance where they plan to smoke (bar, restaurant, vacation, etc.) the clip would then be placed at the bottom of the pack, freeing up the lid for use. In this case, the clip could also serve to hold other items you might also carry in those scenarios, such as I.D., credit card, and cash.