It’s a cold, late April morning, and a heavy snow is falling in the Chicago suburbs. By now, social distancing has everyone feeling mighty cooped up. Everything we’d normally do to unwind — go out to dinner, catch a movie, head to a live show — is off the table. Want to grill? Put on your snow pants. How about a picnic? The Chicago lakefront and adjacent parks, beaches and trails are closed — no matter the weather. Vacations? Not happening for the foreseeable future.