I found one potentially good deal at Walgreens this week. If you buy 8 SpeedStick or Lady SpeedStick Deodorants @ 1.99 each, total = 15.92. Use four .75 off 2 coupons from the 7/27 Smartsource. You'll then pay 12.92 and you'll get back a $10 register reward (coupon that prints at the checkout for use on your next order). So you'll net only 2.92 for 8 deodorants which is .37 a piece. This does NOT include the 24/7 varieties.
You then might be able to turn around and use the $10 reward to do the deal again (if you have enough coupons) and this time only pay 2.92 and get back another $10 reward. Sometimes Walgreens systems are set up weird and won't allow you to use the reward and get another reward back, but this one may work, we'll just have to see!