Olympic pools, SEO mistakes and fixing a scratched CD or DVD

A mystery surrounded the 2016 Olympic Games

Here's why the Olympic diving pool turned green
For nearly a week now a mystery has surrounded the Olympics: why did those pools turn green? According to the New York Times, somebody accidentally added 160 liters of hydrogen peroxide on Aug. 5 to the pool used for diving, which neutralized the chlorine and caused it to turn green. Basically, eliminating the chlorine allowed for the growth of "organic compounds," including what might've been algae.
A basic blogging SEO mistake
Ranking at the top of the search engine results page for your own name might provide a happy ego boost, but it's not going to be all that useful: that only means that the searcher already knows your name. Good for reputation management, but not quite as good for the purposes of generating the kind of traffic you desire. Instead, it makes a lot more sense to target the *keywords* that will deliver the kind of traffic you want.
Fix a scratched CD or DVD with a little forehead grease
Your favorite CD or DVD doesn't play because it's covered in dust and scratches? Just rub the dirty, scratched up surface of the disc with your greasy forehead, and use a tissue to spread the grease around the disc to clean it. The oils from your skin will help clean the surface of dirt and temporarily fill the the scratches on the disc's surface. You can do the same thing with other oils, Vaseline, or peanut butter.