You haven’t lived as a trademark lawyer until you have (1) received a demand letter from Converse saying that your client infringed their distinctive ALL STAR and star logo marks; and (2) received a demand letter from Levi’s saying that your client infringed something about LEVI’S jeans.  Here is an article reporting that Levi’s has added ESPRIT to its list of 300 companies it has sued for trademark infringment.