Though the government might not be guranteed to stay open, Washington D.C. never closes its doors. A little more than 600,000 people live in our nation's capital, and during the work week, the population can flow to more than 1,000,000. It's a busy city to get lost in, but, unlike our forefathers before us, we have apps to help us get a grip on the city and lead us to the places we want to go, and discover places we never knew were on the map. Here are the Most Essential Apps For Living in D.C. (And yes, you can put that wallet away: they're all free.)

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