What is the single-most important thing a spouse on the road can do?
Phone home.
According to Hendricks and Cote, authors of On the Road Again: Travel, Love, and Marriage, those phone calls are all-important.
Phone calls maintain trust and security, help overcome loneliness, provide accountability, and provide a chance to deal with practical matters.
These vital calls "help to remind both partners that the relationship is still intact even though they are separated by hundreds or even thousands of miles."
If you, like E.T., get this while you are on the road, you can do something great for your marriage. Phone home.