There are numerous self help books that are meant to help the software engineers and other people who have little physical activity but instead offer mental services. Such end up, although they work very hard, being sedentary, birthing health issues. Having a good schedule can help keep the engineers active and healthy. Those in self employment have another hurdle to jump too, that of making good use of time resource. In both cases, a schedule is really necessary but if it is made to work and which is regularly followed. Let us take a typical working day and assign appropriate time to tasks. This is a rough estimate that can be customized since have cars and distances to cover while others work at home.