I haven't personally used this website but I was looking for some gift cards on furniture and found this 10% off Amart. Seems to be good deal.
This website seems to have more gift cards at good sale.
Redeemable in store at all Amart Furniture outlets and online. Maximum of 5 gift cards can be redeemed per purchase. Valid up to 36 months from the issue date.
Gift card order limits
– Daily Maximum: 1,000
– Monthly Maximum: 5,000
1% surcharge applies to all credit card transactions (MasterCard and Visa). Amex not accepted. Direct Deposit payments incur no surcharge
I have used this site and I think it requires some sort of Union membership.