Music is powerful. When I have had times of being homesick, I would listen to some music that reminds me of home. Being from Hawaii, it would be Hawaiian music. It brings me back home every time. It brings me back to my childhood, family, friends, parties and my cousins dancing hula.
It has always amazed me how a song can bring back memories in an instant. Therefore, as your child or special someone leaves on deployment, is reassigned or is PCSing, give him or her a gift card to ITunes or a CD of favorite tunes. This way he or she can fill up on favorites to get them through the tough times of missing home.