Update: Dead!
Gift Card Mall is selling a $100 Staples Gift Card for $85 via their Ebay Store. The sale is limited to today. Limit 2 per buyer.
Start your eBay shopping at Fat Wallet and you will get an additional 1% cashback
Staples gift cards can be used to buy Visa Gift Cards online ($7 fee so you will "only" get 8% off). In addition, if you go through Shop Discover (requires a Discover Credit Card) you will get an additional 5% off the purchase of the Visa Gift Card for a total of 13% off the Visa Gift Card.
I recommend buying Visa Gift Cards with Staples Gift Cards in $300 purchases or less at a time. Otherwise, they will likely call you to cancel the order.
Final Math
Costs:
$170 for the gift cards + $14 fee for Visa Gift Cards = $184
You Get:
Buy the Staples Gift cards with American Express Fidelity = $3.40 in cash back.
Fat Wallet will give you $1.70 for starting shopping there.
Use a Chase Ink business card for the extra $14 in fees and you will get 70 Ultimate Rewards points which are worth a minimum of $0.70 and worth more if you transfer to Airline and Hotel partners.
Start at Shop Discover and you will get $10.2 in Discover money.
So you will have $200 in Visa Gift cards, $16.10 in cashback while paying $184 so you will save over $30 or 15% on the purchase of the Visa Gift Cards! Not too shabby!