CHICAGO - Students are heading back to school, but they'll be bringing more than just homework back to their houses. With so many students, classrooms can get a bit dirty. Germs spread when you don't take proper precautions for cleanliness. But there are things you can do at home to keep your students germ-free. Rick Schneider, the president of City Wide of Chicago, joined Eyewitness News to talk about ways to keep your kids clean at school.