 Downy Rinse and Refresh removes more odor in one wash than the leading value detergent in three washes. Find it wherever you buy laundry products. So we now know that when it comes to learning, kids do best with real, physical books rather than screens. This comes from linguistics professor Naomi Barron at American University. Now, she says because we use screens for social purposes and entertainment, we get used to reading online material quickly without much effort.