[header] How to keep your school clean [title] Wipe your feet on mats before you enter the school building. [step] Dirt, pollen, and leaves can all be tracked in by students' feet, making the floors look dirty. Help keep this from happening by wiping your feet before you come in the door. 
[substeps] If your school doesn't have mats, lightly scuff your feet on the sidewalk before you walk inside. Ask your principal about getting mats if your school doesn't have any.