 presented by WSFS Bank and also sponsored by Hoffman's Exterminating and Window World of Northern Delaware. Find a Lemonade Day stand near you at WDEL.com. WDEL, Delaware's news radio. From the Highmark Blue Cross Blue Shield Sponsored Studio. Highmark, the plan Delawareans have counted on for more than 80 years. Today is Caroline Ralston Day on WDEL. Give Caroline a call or text and wish her a happy day.