Imagine that at the time of your death, you have done everything that was asked of you: you worked hard, saved money, and looked forward to your financial freedom in retirement. The only thing you wasted was your life. Sooner or later, we all die, which leads us to ask how we can make the most of our finite time. William Perkins views this question as an optimization problem: How can one lead a maximally fulfilling life while minimizing the waste of their lifetime? Some experiences can only be had at certain times, so it makes no sense to let opportunities slip away out of fear of wasting our money. The waste of our lifetime should be a much greater concern. By carefully planning how to achieve the maximum fulfilling experiences with the resources available to you, you also maximize your quality of life. This book is for those who prioritize lifelong memorable experiences over merely earning and accumulating money for the so-called golden years. Life is too short for later.