The key, as it is in all relationships, is communication. Keep the lines of communication open on a daily basis. Send photographs, Skype one another, send text messages, share short videos online or through cloud computing. Technology is a very useful tool (this is even supported by scientific research), as long as you find the methods that work best for you.
Although you are apart from one another, make time for one another. You can do this by sending a love letter, an email, writing in a shared journal, day-dreaming about your spouse, or chatting online or through text messages. You can stream a movie or TV show and watch “together” by Skyping or FaceTiming. Enrich your online communication with electronic cards, music, poems, movies, and stories. Play online games together and send care packages. Keep photos of each other displayed in your separate spaces.
Give one another a scented pillow case or shirt to help feel present with each other. Plan a trip, a few days away together, or some fun activity (other than sex) to do when the two of you are back together. It helps to always have a time to look forward to when you will next be together in the same place, whether that is every weekend or only a few times a year.
In successful long-distance marriages, couples remain both interdependent and interconnected despite their distances. That means they keep each other involved in daily life and tasks.