Decision science is concerned with helping individuals and organizations make better decisions.  This is important because the only way that you can purposefully influence the quality of your life, your family, your organization, your country, or your world is through the decisions you make.  Everything else just happens.   This talk will outline a systematic way to think through complex decisions.  It discusses and illustrates several  shortcomings of  relying on intuition alone for important decisions and suggests  how you can complement intuition with ideas and techniques from  decision science. Complex decisions where the ideas and techniques have been applied, including the relationship between personal decisions and premature deaths and finding a site for the disposal of nuclear waste from US nuclear power plants will be outlined in the presentation. These applications illustrate the importance of a sound decision framework for producing impactful analysis.