Here are a few Pull-Ups Coupons that you can stack at Target for a great deal:
$2 Off Pull-Ups Printable Coupon
$1.50 Off 19 ct or larger Pull-Ups Target Store Coupon
These will get you $3.50 Off per pack at Target!
If you use Goodnites, they currently have a $1 Off Goodnites Coupon on their site, too.