Join Pampers Village and you can earn points for prizes. So far I've received a coupon for a FREE box of Cheeerios. That took 200 points. It was pretty easy to get even without buying Pampers. I frequently get 10 points from catalinas!
ALSO Pampers Wipes are on sale at Walmart for $1.97
use $2/1 Pampers wipes P&G 6/6
= FREE (thanks Savvy Sister Shops!)