Using Gtd to stay on a diet
What do you think about using gtd for staying on a diet? E.g. You want to avoid some foods...
so instead of giving in to urges to eat them you add it to your inbox and then re-evaluate your diet at the weekly review and also take into account all your urges.
The point is that you make a decision about the diet and change it but only when you're in a good mental state at the weekly review instead of at an impulse. You are not even restricting yourself this way, you're just delaying the decision.