Date night. Two words every girl loves to hear (that, and maybe "shoe sale"). In my opinion, it's one of the most important factors in maintaining a healthy relationship. After being with someone for a while, it's so easy to fall into a routine and going on dates becomes a thing of the past; something you only did when you were getting to know each other. I think the biggest mistake a couple can make is fail to realize that although you may be spending a lot of time together, it may not necessary be quality time.
My fiancé and I have been doing long-distance for the last 4 years. I'm in Los Angeles and he's in New Orleans, so needless to say, quality time is very hard to come by. With our wedding less than three months away, both of us working full time and living in different states, stress levels are high and free time is low. Whenever we visit each other, now and in the years before, we always make our best effort to plan at least one night where we get out of the house, just us two and plan something fun for us to do. It's our time to reconnect, update each other on our lives and just enjoy each others company. We talk about things, good and bad. We laugh. Sometimes we argue. We vent about work. We share stories. We make memories. We are present.
This is important for all couples, not just long distance. In fact, I think it may be easier to take quality time for granted when you're living close to or with your significant other. Distance does indeed make the heart grow fonder. Date night should be a reminder to you both all the reasons you are together and how lucky you are to have found your special someone.