This wasn't just written for window cleaners. It's for ANYONE that wants to employ. It isn't just posted here.
The minimum wage is £6.70, so I rounded it up to make things simple.
It does state the blog post was for ANYONE wanting to employ.
Thanks for the good and positive comments, you guys will go far, you have the right attitude.
And to the rest, try and not put a downer on everything, life is too short.