As I have two kids in diapers, I have saved a lot of money at Diapers.com. I found a code that gets you $10 OFF YOUR ORDER and 1 FREE YEAR OF PARENTING MAGAZINE. The Referral Code is: RW8161.  I like this company because the diapers are the cheapest, there is FREE SHIPPING, NO SALES TAX and the accept manufacturers coupons. And bonus, they are delivered to your door so no lugging big boxes home from the store.