Getting into the habit
Creating a new habit is most effective when is done one step at a time. If your child always has a messy room, for example, expecting them to suddenly have it clean and tidy because you told him to might not be realistic.
Instead, patiently work on one behavior at a time. You might start by having them make their bed every morning or tidy up their school papers every evening.
Have them practice one behavior until it becomes a daily habit. Then add a second one. Be sure to offer encouragement and lots of praise along the way.