Why didn't I think of this before?

I get lots of baby and parenting magazines in the mail.  Some free some subscribed to.  I had been noticing lots of coupons from Amazon for diapers.  One coupon is for 20% off diapers and the other one is $10 off your purchase in the baby store.  So I looked into it.  So far I have bought 2 boxes and have saved a total of $28.48 and got free shipping!  We are buying in advance so we have several sizes on hand.  Saturday night I ordered a box of 204 Pampers for $22.40.  I bought a box of 92 at Target for $19.99.  Seriously, I don't know why I never looked into this the first time.  I have 4 more coupons to use by March so I will be stocking up!!!