The Washington DC Bicycle and Pedestrian Program recently published the District of Columbia Bicycle Map. The best part is that it's free. It's printed on water-resistent paper. The roads are color-coded according to their bike friendliness, and off-road trails are shown in bold patterned and colored lines. The map is available online, or stop by the store and pick up your very own version while they last. Maybe one day we'll have such a map for Fairfax County.