Pantene has a brand new mail in rebate offer available:
Purchase $20 worth of Pantene Expert Products between March 24, 2013 and April 15, 2013 and get $10 back by mail
It is important to note that the rebate states it is applied to the price paid after any coupons or discounts are applied. That means, you will need to spend $20 post coupon/offers in order to qualify for the rebate.
These average $7.97 at Walmart, which means you could run this scenario:
3 Pantene Expert, $23.91 ($7.97 each)
$3/2 Pantene Products coupon from 3/31/2013 P&G Insert
Final Price: $20.91 + get $10 back by mail for a NET of $10.91/3 or just $3.63 each!