The Florida Crystal's sugar coupon is still available via Smart Source. Get $.55/1 Florida Crystal Sugar.
My Walmart has the 3 pound container shown left for $3.98 (regular price). The coupon will make it only $3.43 or $1.14 a pound.
Florida Crystals Organic Sugar $3.98 (3 lbs)
-$.55/1 Florida Crystal Sugar Printable
You can check the store availability at your Walmart on their website to see if they have it in your area before trying to get it at the store. I have two Walmart stores nearby and one carries it and the other does not, so I recommend checking before you head out.