If you procrastinate and put your project off until tomorrow, there will usually be time to finish it later. A single decision is easy to dismiss. But when we repeat 1 percent errors, day after day, by replicating poor decisions, duplicating tiny mistakes, and rationalizing little excuses, our small choices compound into toxic results. It’s the accumulation of many missteps—a 1 percent decline here and there— that eventually leads to a problem. The impact created by a change in your habits is similar to the effect of shifting the route of an airplane by just a few degrees. Imagine you are flying from Los Angeles to New York City. If a pilot leaving from LAX adjusts the heading just 3.5 degrees south, you will land in Washington, D.C., instead of New York. Such a small change is barely noticeable at takeoff—the nose of the airplane moves just a few feet— but when magnified across the entire United States, you end up hundreds of miles apart.