When my company moved into a new building, there was a problem with employees leaving dishes in the sink, not wiping up spills, etc. One of our coworkers wrote

When my company moved into a new building, there was a problem with employees leaving dishes in the sink, not wiping up spills, etc. One of our coworkers wrote a letter to 'Dear Abby' who responded in her column. That column was clipped out and posted in the break areas. A bit passive aggressive maybe but it was incredibly effective.