We just heard that some Target locations have Uno card games with great coupons inside! Take a good look at the image above. You'll want to find packs like that. Now, you will have to buy the first one for $4.99. Inside, there will be a coupon for $5 off your next purchase. So the next one will be free after coupon. If you can find more boxes marked with the coupons, you can continue to get one free on each purchase after, with the $5 coupon.
Note: make sure you look carefully, as there are some boxes with a blue coupon stripe, but those coupons are already expired. You're looking for the yellow one that says the coupons expire 12/31/12.
(Thanks for the photo and tip, Cajun Couponer!)