Gross Things Under Your Feet

People rarely think about what''s under their feet. If they''re inside, it might be a rug or a wood floor. However, there''s more than meets the eye beneath our feet—dust mites, bacteria, and other disgusting things exist on those surfaces. Step outside, and there''s a whole world of bugs, worms, and other matter underfoot. Readers will never look at the bottom of their shoes the same way after th...