I got rid of my behavior chart a year ago now and realized it was not working for the kids that really needed that sort of structure for their behavior. I also, did not like how public the class behavior chart was.
Here is a personal behavior chart for those frequent flyer kids of yours. I laminate these and Velcro them onto their desks. This visual goes along with your verbal warnings and gives students a chance to make good choices for themselves. It is predictable and visual so the students can see how their actions present certain results.
Brag notes for home
Data sheet for your records and clipboard :)