Get a Free Grocery Scanner from Nielsen when you signup. As a bonus, for all of the groceries you scan, you get freebies just for scanning the groceries you already buy.
You must be selected to receive the scanner, and the good news is our readers typically hear back within just 2 days.
The way it works is after you buy groceries, do a quick scan at home, and then you get points that you can redeem for gift cards, Eureka vacuums, and freebies. Members have been known to receive random surprise freebies just for participating.