Flossmoor Fest returns Sept. 10 with a full day of activities for all ages.This year’s festival — located on Sterling Avenue in downtown Flossmoor and at Flossmoor Park — again features food, music, games for the kids and a great chance for friends and neighbors to get together.The festival is underwritten by the Village of Flossmoor. A number of individuals and businesses are also sponsoring the event, including the Homewood-Flossmoor Chronicle. The newspaper is providing a poster-size front page “selfie frame” where fest-goers can take photos they can upload to social media.This . . .