Special to the AdvanceIt’s that time of the year: spring has sprung and Keep McAllen Beautiful is spring-cleaning the city through their annual Great American Cleanup and Don’t Mess with Texas Trash-off, taking place on April 13 from 8 a.m. to noon at McAllen Municipal Park, 1921 N. Bicentennial Blvd.Get those cleaning shoes on and join KMB and traverse the city’s major streets, hike and bike trails, city parks and schools to help keep McAllen looking clean and beautiful.The public is encouraged to participate. Volunteers come from all walks of life such as students, business leaders, civic and non-profit organizations,