Tropical Smoothie is having their fourth annual National Flip-Flop Day on Friday, June 18th (tomorrow!). Wear your flip-flops into any Tropical Smoothie and you will get a free 20 oz. Jetty Punch (strawberries and bananas) smoothie! They are giving out 500 at each location. I have done this at least 2 times in the past and every time, my boys wear flip-flops too and we get 3 free smoothies!
Go HERE to find a location near you. I would probably call before you go to make sure the 500 hasn't been given away already. In the past, I have gone in at all times of the day and they still had not reached the 500 so it is always worth a shot.