For home: Assemble a home emergency supplies kit.
For evacuation: Assemble a "go-kit." Include: important documents; health records; home, car, and insurance policies; and photographs of important personal property on a CD or thumb drive. Know evacuation routes.
Plan for members of your family who are elderly or have special needs. Additional planning may be required for people with disabilities or other access and functional needs. Stockpile necessary medications and items for anyone in the family who has special needs – medical, developmental, or physical. Here is good national resource on comprehensive planning for seniors, elderly, and caretakers.