Make sure you are a member of Amazon Mom! This Amazon deal is great for size 1-2 to get diapers approximately $0.11 a diaper. (Size 1-2 is 192 diapers for $21.92 plus tax, Size 4 is $23.51 plus tax - $0.17)Make sure you order with Subscribe and Save and you can always unsubscribe once you have received the shipment.
Also, head to Target's coupons and print off the $3 off Huggies diapers coupon (hopefully it is still there) and then print off the Target $2.50 coupon off Huggies diapers - you can stack these together. Do this TWICE. Through tomorrow, Target is running a sale on boxes of Huggies diapers. If you buy 2 boxes, you will get a a $5 gift card in return. I ran this deal today. Unfortunately, I am buying size 6 diapers, so there are only 60 in a box - this came out to $0.19 cents a diaper which is the best deal I can get for this size. The deal above on Amazon is $0.23 for size 6.
This is the season to stock up on diapers really cheap for the year!