Here it is:
Seventh Generation Free and Clear Baby Diapers, Size 4, 135 Count <- click="" me="" p="">
you'll reach this page. select the diaper size you need and the unit count. make sure you click the least expensive one on there. Then click the Save $4 coupon button.
Then over to the right side of the page select the subscribe and save button which will take another 20% off. The choose the deliver every 6 months option. (So after you receive it you can cancel it!)
Don't have prime yet? Sign up here for a free 30 day trial.
Now go buy some diapers! After the discount and coupon I paid $23 for 92 diapers. Not too bad for size 5's!