TB, my former nanny used to ship food to her son when he was away at college. And I don't mean some cookies, either. She would bake a pan of lasagna or baked ziti, and then freeze it. She would take it to the post office just before closing and send it by overnight mail. When it got to him the next morning, he would put it in the refrigerator, and then into the oven that night. She would do this at least once a week.