Home Depot will not take coupons without barcodes or coupons printed on solid paper.  I work as a cashier at a Home Depot and the computer system no longer allows a discount to be taken manually without the barcode.  If it is printed on a regular piece of paper it will also not be taken because all of the discounts are printed on lamanent now and have security features in them. 

Please use caution in buying these on ebay.  The orange cards that have the 20% off on them were given to employees and should be safe (though it is possible to counterfeit these also).  The paper coupons with no barcode are definitely frauds and I would strongly advise you not to purchase them.  Good luck in finding yourself a deal and hope this is helpful.

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