(TrendHunter.com) Reyka Vodka's contest aims to encourage American workers to take a paid time off day and enjoy the Summer Solstice by harnessing the Icelandic concept of sólarfrí. On Tuesday, June 21st, 50... (TrendHunter.com) Reyka Vodka's contest aims to encourage American workers to take a paid time off day and enjoy the Summer Solstice by harnessing the Icelandic concept of sólarfrí. On Tuesday, June 21st, 50...