Answer:
The topic of efficient and effective use of time is a critical one, especially at certain points in life. When you are in school, or when you do both work and school, or when you are just over academics and are focused on working, the correct use of time, especially extra time, is vital to be more productive and effective.
As such, and because having extra time, of any kind, is almost a luxury in todays world, how we use it, how wisely we distribute it, may make a difference between always being rushed for time, or having enough to accomplish all that we have set ourselves to do as our goal.
Using extra time wisely may turn a person into a highly productive one, and not necessarily at work, but also in personal matters, and in family life.
As such, finally, I can use any extra 15 to 30 minutes, and I have done so, to be able to dedicate myself to my most personal, not-work related goals, which are: writing a book for publication and initiating my own business. Because these projects are still non-productive money wise, and I still need to work, making good use of those extra 15 to 30 minutes that I may have had will ensure that I also reach my personal goals, making my life a happier, and more fulfilled one.