There are times when you are told (usually the result of a PET as an accomodation) that you need to put an individualized behavior plan in place, so I do have to implement different kinds of plans at certain times to provide evidence:
Here is an example of one that I designed recently to help a child who had great difficulty staying focussed and paying attention. She needed constant reminders and prompts to "come back" to a class activity or her seat work. This chart was simply a way to chart the times I caught her on task, even if it was for 10 seconds (that's how severe this situation was). It didn't mean that EVERY time she was on task, I would catch her. But, the more often she was on task, the more often I would be able to catch her. She would just light up as brigh as the sun when I put a smiley face on her chart! She wasn't getting anything but my attention showing her that I noticed. It was taped to her table spot and readily available at all times because, if it's not taped down, I definitely won't be able to find it when I need it. The other students would cheer her on and be so proud of her getting smiley faces. If you needed to, you could add some sort of prize to it (5 smiles could be a sticker or 10 smiles could be a trip to the prize box).
I have to say the simple chart increased her self esteem and her attention span (as much as it could for this problem that is so far out of her control) and it can be tweaked to use for different behaviors (sitting in your seat when you are supposed to, not talking during work time, raising hand to speak). It is easy and manageable which are two things that are definitely necessities when it comes to classroom behavior plans!
Check out Lesson Plan Diva's Linky Party to get lots more information about Behavior Management!