Notify your children's school about the move and ask for their files and a status report if you are in the middle of a school year. If you moving with your appliances have them serviced and if you have a service plan see if it will be in effect at the location that you are moving to. Ask for your families medical records, dental x-rays, immunization records, medical and eyeglass prescriptions. Check with your bank to establish service in the new location and if they do not service that area ask for a credit reference letter and have your new bank call your old bank. Along with that make sure you notify any companies that you have installment payments with to your new location.
Some companies require permission to move installment payments, especially if they are out of state.
Speak with your attorney to see if your will and other legal documents will transfer if you are moving out of state. Plan to get some insurance estimates on household and personal possessions during the move. Pick-up a moving package from the US Postal Service that will have forwarding cards for family, friends, businesses and magazines. Notify any employer of your address change so you receive you W-2 forms on time at tax time. Contract the major credit agencies for transfer of credit files.