79. Flip Flop Friday at Tropical Smoothie It’s Flip Flop Friday at Tropical Smoothie in Barrington! The first 500 people who come into Tropical Smoothie in Barrington today WEARING FLIP FLOPS will receive a free 24-ounce “Jetty Punch” smoothie. June 18, 2010 Bars and Restaurants/Causes & Giving/Family Fun/Food/Giving Back/Good Works/The List Year to Date/Things to Do