Don't change your voice mail answer either.
That will be an alert to the thieves out there that "no one is home" and you will come back to a house that is empty, no furniture, no nada...
Have your neighbors park their cars in your driveway, keep the newspapers picked up and even roll the trash barrel out to the street to make it look like you are still home.
That way, when they go to work, their car disappears and it comes back in the evening. All looks normal.
Daughter works for 911 dispatch center, I worked for the Fire Department and retired from there.