I've been averaging 55 mpg, using some hypermiling techniques I learned from CleanMPG.com (I don't do the dangerous stuff, though, like drafting!). Friday I managed to get 68.1 mpg on my 20 mile commute to work.
Beating the EPA - The Whys and how to Hypermile
Adapting Basic Hypermiling Techniques to the HCHII