Clip a new Family Dollar store coupon and pay next to nothing for U by Kotex liners! The 16-count boxes of U by Kotex Lightdays Liners are regularly $1.00 at Family Dollar. Use the $0.75/1 coupon to pay just $0.25! Look for the Family Dollar store coupon in the Everyday Values Book, found in the front of the store. Or, access the mobile version of the coupon straight from the Family Dollar website on your smartphone.