Pick two of the seven keys for a healthier home ...(Health Class)

Please visit the website below and answer the question.  

http://www.cdc.gov/ounceofprevention/docs/oop_brochure_eng.pdf

Pick two of the seven keys for a healthier home that you feel you could improve on.  In no less than two paragraphs discuss three or more behaviors you could modify to achieve this goal.