I biked in from Rockville on the %$#!! Rock Creek trail. You can read all about it on my blog.
I must say that I was kind of put off by some of the attitudes here about how inconvenient it would be and who wants to be in DC with all those people. It was great and kudos to WABA for making it easy.
http://web.mac.com/harrycampbell1/iW...28BB71DB1.html