My nagging ration system: Nagging works like currency. If you nag your kids too often, the effect of each nagging diminishes. So, you end up nagging louder every time. (If you print too much money, the general price level goes up in the economy, because the value of each dollar goes down.) So you need to control the supply of nagging like a central bank. You make a note of how many times you nagged your kids in a day and pace yourself to use only a fixed number of nagging, like say, 10 times a day. If your kid does something annoying, like leaving the refrigerator door open, and if you’ve already used up your daily ration of nagging, you just have to take care of it yourself, because nagging more would trigger a downward spiral of inflation. Overall, you will be less effective at managing your kid’s behavior.