I live in DC and am looking for day trip or local vacation ideas. I don't have much of a budget at all, but I'm burning out at work and just need to get away from daily distractions. I've taken a few days off of work in September, and would like to get out in nature, or just out of my house and away from all of the cleaning/organizing that I'll be tempted to do, and clear my mind a bit. Anyone have any ideas?