BizSugar.com › Advertising › How to trick Google into Upgrading Your Quality Score

Everything I'll explain on this article has been tested by yours truly many times (and you're more than welcome to check it yourself).
When I first tried it and it worked, I was certain that there was some sort of mistake or that I just got lucky. When it kept working repeatedly time after time, I figured out that I was onto something really cool.
I found that the average QS in every campaign is somewhere around 5.
Just read and implement it for yourselves :)