I've been doing a lot of it lately...
All winter long I ride the same bike to minimize the destruction that road salt and sand cause. This year that bike was a Salsa Vaya. I set it up with flat bars and down tube friction shifters along with a set of 45mm wide tires and a rear rack. The tires helped keep the rubber side down and the rear rack kept weight off my back.
That bike has now gone through a complete overhaul. Torn down and rebuilt, getting a new test wheelset and drivetrain. Everything else has been de-salinated and re-lubed. The drop bars and STI shifters went back on, making this a bike for slaying gravel and smooth singletrack (most of the trails in MPLS).
Along with a rebuild of the Vaya I also rebuilt my Fargo, and Ti La Cruz. I'm waiting patiently for a Salsa Ti El Mariachi...It can't come soon enough.