title: A simple popup with custom HTML, a timer and "Don't show again" function
body: <p>I want to put up a pop-up opt-in form on my website and I'm looking for the right piece of code so I don't waste time creating a new one. There are about 6 trillions out there, I've tried a few, but none of them did the job.</p>
  
  <p>I'm using WP and JQ, so I'd prefer a plug-in for any of those. </p>
  
  <p>I want to use my own HTML code and I want it to pop-up with a faded background after X seconds. I also need it to set cookies so that users can disable it once and for all. If not that, then it should be able to only show up once per session.</p>
  
  <p>Also, it needs to be lightweight and not slow down the site.</p>
  
  <p>Any suggestions?</p>