Better Than Before: What I Learned About Making and Breaking Habits--to Sleep More, Quit Sugar, Procrastinate Less, and Generally Build a Happier Life

by Gretchen Rubin

Although treats make it easier to stick to good habits, if we make a habit of a treat, it may stop feeling like a treat. In “treat creep,” a rare treat gradually turns ordinary, or a small indulgence grows larger over time.