I want to congratulate the great Capital Bikeshare for opening their 400th station. This is a great program that I'm proud to be a member of, and its advantages are numerous - one of which is that you can "park" close to wherever you're going in DC, walk a couple of blocks, and be right there. It's a way to guarantee a parking space, so to speak, especially if your car is at another station, perhaps a mile away.
Please consider me a huge supporter of this fine company (I can't vouch for its internals, but from a commuter's, tourist's, or weekend warrior's perspective, it's a wonderful resource).
"100 Reasons to Celebrate our 400th Station" on capitalbikeshare.com
Go to their website and find out all sorts of details about joining, etc. I think I paid $75 for an annual membership [it has been raised to $85, undoubtedly due to its popularity] which gives me unlimited, free, 30-minute rides. I often ride 20-25 minutes to another station, then grab another bike there, and repeat the "cycle" (sorry).