This week Walgreens has W Brand diapers for $5/jumbo pack. If you have been able to find the Infant Care Coupon Booklet you can get them for $3 each with the following deal:
W Brand diapers jumbo pack $5
Use $2/1 W Brand Diapers Walgreens Infant Care Booklet
Pay $3 after coupons
These booklets were available in-store a while back and hopefully you may be able to find them still. I found mine at the entrance together with the rest of the sales circular. But others have found them by the pharmacy area or the baby aisle. your best bet is to probably ask a cashier if they know where they might be.