Advertising PPC on weekends?

[kylespringer]

How do you guys who advertise PPC think abotu advertising on weekends, I turn my advertisements that are PPC off on weekends because I find for the most part there a waste. What are your opinions?

 

[eleven]

I find that my webmaster tutorials site stats go lower over the weekend. but my ringtones site does extremly well over saturday and sunday... not sure about ppc