It’s that time of year again – didn’t you know? Brown Bear Car Wash is hosting its annual free car wash day in celebration of its anniversary – the Seattle-based chain is 57 years old today. Its first location was on 15th Avenue West in Seattle’s Interbay area. The free automotive baths will be available at the company’s 21 automated “tunnel wash” sites located throughout the Puget Sound area – not at their self-serve locations (you don’t want to work for your free wash, anyway).