Families in the region who are looking for an exciting new holiday tradition need look no further than Christmas on the Potomac at the¬†Gaylord National Resort in National Harbor, Md. It is an experience like none other. We’ve attended Christmas on the Potomac twice (2010 and 2011) and both times our family has been left practically speechless. I’m a ¬†parent of tween boys and trust me when I say that it is getting harder each year to find outings that the whole family can enjoy. That being said, I’m not exaggerating when I say that my kids never want to…