Walmart, and Starbucks. All can be bought at a discount, resold for close to face value, and are generally for businesses with high consumer approval. What you won’t see on the list: gift cards ...

GCX imposes a 15% fee for the privilege of using its site to sell your card ... For instance, at the time of this writing, a $100 gift card to Walmart will get you $85.50, the Apple Store will ...

As noted above, if you have an eligible trade-in to offer, you can crank the free gift card amount all the way up to $1,500, which can buy you a lot at Walmart. This deal runs through December 8 ...