As from November 11th Google will launch a so called Shared Endorsements for products or services which will allow them to use your picture when displaying ads to your friends.
Is it really hard for you to ignore that beep sound of a new email, Facebook notification or a text message, are you experiencing an urge to share the latest photo to Instagram or send a new tweet?
Often in PHP you want the same block of code to run over and over again and instead of adding several almost equal lines, you can use loops to perform this task much easier.