Here are steps of how to get this deal:
- Simply create an Amazon Baby Registry during the promotion period (March 14th, 2016 PST – June 13th, 2016) and within just a few days you will receive an email letting you know that you can now redeem the promotion with the steps below.
- Add any products in the promotion found here to your Shopping Cart via the “Add to cart” button on the product information pages.
- Enter the promotional code HUGGIES30 on the Checkout page to get 30% off.
I haven't personally tried this, but I'm thinking this will not combine with the Amazon family 20% discount, just because it says you have to click the “add to your cart” button. In order to use your Amazon family discount, you have to get it via clicking subscribe and save, so I'm thinking they won't work together. It's worth a try though!