The Washington area has a great bikeshare program, called “Capital Bikeshare”.
I really encourage you to subscribe online, it only takes a few minutes: www.capitalbikeshare.com. It costs only $85 a year, which is much cheaper than the bus or the metro. (Fund employees are eligible for a reduced rate)
My main urban trips are from home (on Pennsylvania Avenue in West End) to the childcare center of my son (near the White House) and from home to Georgetown University. I also use the Bikeshare system to do some shopping on Wisconsin Avenue. It is also nice for short distances on the C&O Canal.
I also have my own bike because the Bikeshare system is not available in some areas around DC, and it is more adapted to trips that exceed 30 minutes.
The Capital Bikeshare program started in 2010, and today there are 300 stations and 2,500 bikes, with approximately 5,700 daily trips. We have the same system in Paris (where I come from) since 2007: Velib. It is very popular among inhabitants and tourists. It had a much larger scale: 1,200 stations, 17,000 bikes, and 85,000 daily trips.
So it’s up to us to make the Washington Bikeshare system even bigger 😉