|Was over at Walmart today and found a Comet Stainless Steel Spray Cleaner 17oz for $1.99 (YMMV - West Coast)|
I was able to stack 2 coupons [1 coupons.com ($1.25 Off) & 1 walmart.com ($1.00 Off) [under household]]= $2.25 off Coment Stainless Steel Spray Cleaner)
$1.99 - $2.25 - = -$0.26 back (unfortunately I wasn't given money back, but the cashier dude did look at me like I'm crazy)
Coupons.com coupon requires a membership but can cancel anytime according to their FAQ. Credit to the MODs for finding this.