Instead of being a source of constant
distraction, your computer should help you accomplish what's most important to you every day.
It's easy to spend hours sitting in front of a computer immersed in doing little things, while avoiding the most important one.
DoOneThing won't nag you, or beep at you, or harass you.
Its presence at the top of your screen in a place of primacy, near the time, is intended to bring your focus back to what is most important for the day, to make your primary goal present in your computer screen and life.