Diapers are expensive to buy and the costs can upset your goals to slash your grocery and household budget by 70 to 80 percent or more. Joining Amazon Mom can be a solution to buying cheaper diapers if you’re not using cloth diapers. The program is subscription based and offers a 30 percent discount on diapers.

There’s no cost to joining Amazon Mom. Membership is free and you can use it to purchase diapers and wipes. You can decide how often you want to receive each purchase, such as every month or every six months. And you can order up to four at a time. Shipping is free and you’ll receive your order within two business days.

Once you sign up for Amazon Mom, select the “Subscribe and Save” option when placing an item in your cart. That will ensure a 30 percent discount. You can find a $10 off discount code online or in various baby and parent magazines for additional savings.

It used to be that you could score amazing deals with this program by combining additional promo codes offered by Amazon. Parent Magazine and Fit Pregnancy, for instance, used to have YT and YJ codes that you could enter to take an additional 10 percent off each. That would amount to a total of 50 percent off the purchase price. Add the $10 off promo code, and moms were scoring free diapers left and right. Amazon wasn’t so thrilled about that, and has stopped offering YT and YJ codes, but you can still get cheap diapers with prices far below what you’ll pay in-store.

Canceling your subscription is easy. If you decide that you don’t want to keep up with your subscription to Amazon Mom, simply cancel at any time. You may want to subscribe every 6 months at the beginning to see whether it’s a good fit for you and then change or cancel your subscription down the road.