Gu is liquified sugar and caffeine that helps you run far. They are a $1 each on sale at EMS.
So a few weeks back, I enrolled in their reward program at the store. This week, I got an email from them with a coupon for $5 off any purchase of $5 or more! Holla! That's 5 FREE Gu's for me!
The email also has a link for me to update my profile and if I do, they'll send me another $5 off $5. Works for me!