I have found a few in store coupons, these are not printable pampers coupons, but they are high value pampers coupons that will save you a lot of money. You will have to find these in your coupon fliers though, so keep your eyes open. The below coupons are in a glossy single page wal-mart flier.
Another great coupon is the $3 off coupon. The coupon below was released in the Sunday paper coupon insert for $3 off pampers, it is a Safeway/Randalls coupon but apparently can be combined with the $10 off coupon for $16 off two boxes of Pampers.
Thanks to My Litter for posting this coupon.