Note: You can "look inside" this book at Amazon.com. It is also available in Amazon the Spanish version "Decisiones ptimas: C mo Optimizar las Cuestiones de la Vida Cotidiana". The writer Baltasar Gracian, in one of his aphorisms, suggested that: "The best in life is achieved by optimizing. It needs good taste and good judgement since neither education nor wit is sufficient. There is no perfection where there is no optimization. It includes two advantages: being able to choose and to choose the best. Many men of fruitful and subtle wit are not enlightened when they have to choose. They always choose the worst, seemingly on purpose. Thus, knowing how to optimize is one of the major gifts." Many of us would agree with Gracian as most of us are trying to make the best decisions, rent or buy the best flat, make ends meet in the best possible way, have the best relationship with the people surrounding us, etc. That is to say, we try to optimize our everyday life issues. However, there are few who truly succeed because school does not prepare us for this important skill. In this book we will try to cover this deficit. We present a thought-out method so that we can all choose the best option with regard to the questions that arise in everyday life (work issues, economic aspects, family and social life, health topics, etc.). The optimization method that we present is easy to understand, simple to apply and produces good results.