My desktop is off for the weekdays. That is the rule in the house unless my sons have a research to make. On weekdays they can use the computer but only up to Sunday noon. I also make a close watch on my kids sleeping habit in order that they won't rise up late in the morning. They can watch tv but only until 9pm. When I will be away, my daughter takes my place in supervising them. I hope my sons grow up to be matured persons, soon especially my elder son who has been giving me headaches for the last two years already.