title: Add a pop up box for each user/IP to see just 1 time
body: <p>I don't know exactly what to search for when looking for info on this so here we go...</p>
  
  <p>I've recently made a change to my MVC website (all the code parts are VB, not like most examples which tend to be in C#).
  Once a user logs in, is there a way to show that user a pop up box, or a div, which simply explains the changes made (the text in the box is not important).
  I only want the user to see this ONCE! 
  Example:
  As soon as the user goes to the URL, they get a pop up box saying "You now have to add your name when creating a new post"
  But of course, the user doesn't want to see this EVERY time they log on to the page.</p>
  
  <p>Any pointers would be lovely,
  Cheers.</p>