This essay sheds light on what is the compound effect of decisions, explicates how the compound effect of decisions can affect people's lives, and expounds upon how to yield a positive compound effect of decisions by implementing decisions. Succinctly stated, the compound effect of decisions is the aggregate effect of implementing decisions. The compound effect of decisions is a corollary of profusely implementing decisions. Profusely implementing decisions of the same decision type can either yield a positive compound effect of decisions or bear a negative compound effect of decisions. For instance, implementing financial decisions can either yield a positive compound effect of decisions or bear a negative compound effect of decisions. Implementing imprudent financial decisions can bear a negative compound effect of decisions if it culminates in a person succumbing to poor financial health. Conversely, implementing provident financial decisions can yield a positive compound effect of decisions if it culminates in a person attaining robust financial health. Implementing dietary decisions can also either yield a positive compound effect of decisions or bear a negative compound effect of decisions. Implementing insalubrious dietary decisions can bear a negative compound effect of decisions if it culminates in a person slumping into an infirm state of poor health. Conversely, implementing salubrious dietary decisions can yield a positive compound effect of decisions if it significantly contributes to a person attaining robust overall health. Implementing career decisions can also either yield a positive compound effect of decisions or bear a negative compound effect of decisions. Implementing injudicious career decisions can bear a negative compound effect of decisions if it culminates in a person succumbing to job stagnation. Conversely, implementing judicious career decisions can yield a positive compound effect of decisions if it significantly contributes to a person attaining career advancement. The compound effect of decisions can demystify the outcome of profusely implementing decisions of the same decision type. Profusely implementing improvident decisions of the same decision type can bear an inauspicious outcome if it precipitates a negative compound effect of decisions. Conversely, profusely implementing provident decisions of the same decision type can yield an auspicious outcome if it precipitates a positive compound effect of decisions. The compound effect of decisions is elicited by people who profusely implement decisions. The compound effect of decisions is perceived to be appealing to people who implement wise decisions and is perceived to be unappealing to people who implement imprudent decisions. People who profusely implement decisions can influence the effect trajectory of the compound effect of decisions. People are at liberty to profusely implement prudent decisions if they choose to do so. People do not need to impetuously implement decisions. Impetuously implementing decisions renders people all the more vulnerable to blithely implementing imprudent decisions. It stands to preponderantly reason that the compound effect of decisions can affect people's lives. The compound effect of decisions can propitiously affect people's live in certain contexts. This is because profusely implementing prudent decisions can yield a positive compound effect of decisions that can result in improving a person's quality of life. Profusely implementing prudent decisions can ameliorate a person's quality of life if it has bearing on helping a person to improve one or more facets of his life. People have the latent potential to enhance their quality of life. The compound effect of decisions can unpropitiously affect people's live in certain contexts. Profusely implementing imprudent decisions can bear a negative compound effect of decisions that can result in undermining a person's quality of life. Profusely implementing improvident decisions can undermine a person's quality of life if it has bearing on exacerbating one or more facets of his life. It is undesirable for people to have a subpar quality of life. The compound effect of decisions can affect people's lives in different ways. This is because the aggregate effect of implementing decisions can potentially vary in magnitude based on the magnitude of the decisions implemented. Implementing wise decisions of sizeable magnitude can yield a sizeable positive compound effect of decisions. Conversely, implementing shrewd decisions of infinitesimal magnitude can yield a diminutive positive compound effect of decisions. People are not limited to implementing decisions of negligible magnitude. People have the autonomy to implement decisions of sizeable magnitude. The compound effect of decisions can favorably affect people's lives in contexts in which they implement prudent decisions and abstain from implementing imprudent decisions.