One of the best ways to improve oneself is to be more observant. Many of us refer to blogs such as this one to learn tips and tricks for self-improvement, but sometimes there is an easier way.
It hit me at work this morning. I have a coworker who is about 55 years old and very fit. I know he runs religiously so exercise is obviously one of the contributing factors to his health. I also observe him make breakfast every day in our company kitchen. I would say 90 percent of the time he simply eats oatmeal. Eating oatmeal is not a silver bullet for weight loss or health but this person is someone who clearly values oatmeal since he eats it nearly every day. Correlation does not equal causation but I would have to guess that a steady diet of daily oatmeal is part of his overall health plan.
I now eat oatmeal for breakfast every day.
Consider the successful people around you as free resources to learn from. What are some of their observable habits that might make them successful? Can you be more observant and try to mimic any of them to see if it works for you?