I have done it

I actually got paid to take a bag of things from Walgreens. Really. I left the store with 2 hairsprays, 1 canker tablets, 2 Cokes, and 4 Reese's Whipps (only 1 pictured, we ate 3 celebratory Whipps on the way home).

Here's the breakdown

BUY
$4.99 Studio Line product (2)
Buy one get one free
$7.99 Canker melts
$.45 Reese's Whipps (clearance) (4)
$1.39 Coke (2)

USE
$6 Walgreen Register Reward
$7.99 Canker melts coupon
$1 Studio spritz
$1 Studio spritz

I spent $1.14 out of pocket and then the clerk noticed that one Coke did not come off the total so, I was refunded $1.39 therefore giving me a profit of $.25!!!