Bikes to Borrow... I see their car (or cars) around town...

Bikes to Borrow in Washington DC
this could be your go to for getting a bike for that long event that merits a more high end machine then you train on
or for when you have friends visiting from out of town and want a high end bicycle to get their ride on or to traverse the city

Bikes to Borrow
http://bikestoborrow.com/