Nerd Note!
Nerd Notes will be about computer use or repair issues.
First of all I should warn you that I do not consider myself to be a nerd or geek. I am that way in some ways, but computers are not my life. At the end of each day I shut everything off. I see no reason to waste electricity keeping something on when I am not using it. It just costs money that I don’t want to spend. I even go around after my son and turn stuff off that he leaves on. I probably turn off 2 or 3 times the stuff that I turn on! A geek leaves his computer stuff on all the time and computers are the main focus of his life. I have many, many other things in my life! 
Should you turn your computer off or leave it on? My feeling is to turn it off when you are not using it. Some people have told me that turning a computer off and restarting it every day makes it die earlier. How many computers die from hardware failure? Practically none. Windoze needs regular restarts to work right. A Mac doesn’t, usually. I have never in all my years in computer repair seen a regularily maintained machine that was harmed by turning it off. Give your computer a rest and it will last longer and work better!