Sit down during dinner. Dinners went much more smoothly after the rules were established. Have a dictionary in full view in some important room in the house, like the living room or kitchen. Dictionaries should not be hidden. Use your dictionary often, and make sure your children see you use it and learn to use it themselves.
Many families sleep poorly.
Lack of sleep is becoming a part of modern life. This is inevitable when little babies are around, but once your children are able to sleep through the night try to set up a consistent bedtime for everyone. Your brain likes to get into a set rhythm if it can. Get lots of exercise. Exercise is one of the best tonics we have for the brain - in children and in adults.