If they fight, call someone names, or do not tell the truth, a tag is taken from a folder in which they already completed a chore and it goes into the folder of the 'crime' they committed. They lose that tag time.
It's working very well. The kids ask to do extra things for more tags! "Can I clean the littler box?" Hm, let me think about. . .YEAH!
Off to scrap today. Perhaps I'll post again later.
"Concentrate on what you are working for; not on what you fear."