Another year, another dozen opportunities to explore what’s cool, what’s interesting, what’s weird in your own backyard. It’s Under Rocks, where you help us send our adventurous correspondents out to discover those hidden gems in northern Illinois. This time, Jason Cregier and Dan Libman, with a big assist from tech giant Spencer Tritt, visit with some of the people who transform Old Places into New Spaces. Rehabbing an old building can be an expensive, overwhelming commitment. Imagine taking on