Depends on the scale of the infraction. Usually, if she's getting a bit slack and not getting the jobs done daily, I confiscate her ipod (that hurts the most) and provided she starts doing the job, she'll get it back in a day or two. If she doesn't apply herself, the time lengthens. We also use this when she doesn't meet other expectations, eg we come down hard on her if she doesn't get homework finished. With her it's not usually willful disobedience, rather distraction and failure to organise herself. I'm hard on her with these things because she's so scatty and I figure I've only got a couple more years to get her into good habits, or she's not going to cope with the "real world". I also talk a lot about our expectations and how that relates to what real life requires. What we expect is often the same sorts of things that employers expect, kwim?