What is a good way to use projects?

Every environment start with default projects. We advise to use these projects as follows:

• Holiday hours
  This project is for registering holiday hours. In the Netherlands, everybody has a minimum of 20 day’s per year (160 hours).
• Special leave
  This project is for special occasions, for example:
  • Maternity leave
  • Funerals
  • Etc.
• Sick
  This project is for your sick days.