Navigation Tips:

To get from Capitol Hill to Columbia Heights during rush hour, take Irving to North Capitol Street, which will take you to an empty road with a high speed limit around the Veteran’s Administration Facility, allowing you to avoid congested Florida Avenue, which every GPS suggests by default.

Here is a map of DC’s speed cameras.

Public Bathroom Tips:
-City Center (near Metro Center/Chinatown) has secret public bathrooms.
-An open source database of public restrooms downtown.
-The restrooms at the Lincoln and Jefferson Memorials are open 24/7.