Diaper count

The books says you need about 600 diapers in the first six weeks....that's about 14 diapers a day...per baby. But wait, what about for twins...does that mean we need to double that?? We're talking about 30 diapers a day and over 1200 for the first six weeks?? And they say newborns go through more than larger infants b/c they feed more frequently...I guess we better increase that number just a little. Our good friend Yang gave us a coupon for $5 off each box of diapers so I figured we better start stocking up. Each of these boxes is 200...we only need 5 more boxes...and that just gets us through the first six weeks...