7. Sit up
Always yelling at the kids to sit up straight whenever they are slouching. We want our kids to know that sitting straight is a great deal and that they should always sit properly otherwise it is a sign of disrespect. But come on, how many of us right now are slouching so much that we look like a figure 8? While some people have done a decent job of sitting properly, other just sit the way they like and do their work.