How to downgrade iPhone 5 to iOS 6?

Is there any possible way to downgrade an iPhone 5 from iOS 7.0.4 to the latest 6?

If you could upgrade to iOS 7.1 beta, would it be easier to downgrade?
What if I connected my phone to iTunes 10 and restore to iOS 6?

Is there a way to erase everything from your phone and do a clean install of iOS 6?

Anything?
I can't stand iOS 7 and I don't think it's going to get any better.

Also, does anyone know if this website is legit?
http://downgradeios7.com/

Any and all help is greatly appreciated!

1) no, no way to downgrade any more.
2) no, http://downgradeios7.com/ does not work.