Bed times, clothes, television shows, video games, food, curfews...when you have children there are thousands of things you negotiate from the time they get up (pancakes or cereal?) to the time they go to bed (Okay, five more minutes!) Evidently this is a life skill they are learning and children are not just trying to drive their parents crazy...here's the article. A good read-
http://www.cnn.com/2011/LIVING/07/26/negotiating.with.kids/index.html?hpt=hp_bn8