Well, given my current position, and where I drive to, I-80 is not normally in the set of roads I drive. I was thinking US 20 out to Rockford, some semblance of I-39 south, picking up something going further West. Or perhaps US 20 out to Galena, then 84 (or is it 82?) south. Either way, they're local roads.
But still. Pay the stinkin' tolls and get there as fast as humanly possible (90-100 mph the whole way.)