All pampers are 50% off at shopmyexchange right now and deal will end at midnight. No coupons needed, this is posted on their front page. I believe these are really good prices as I have done a lot of diaper purchases online. Also shopmyexchange is tax free and free shipping.
This deal ends midnight of 8/31 which is today. It is a daily deal.
Swaddlers Size 5 Giant Pack 92ct. - 17.99
Swaddlers Size 4 Giant Pack 104ct - 17.99
Pampers Natural Clean Wipes Travel Pack 192ct - 3.49
Pampers Baby Dry Diapers Size 4 128ct - 18.49