Here are the details from The Deal Fanatic:
Buy one 10 ream case of paper at $42.99
Use 40% off coupon found here
Submit for the $20 prepaid Visa Card rebate (will print on your receipt)
Total OOP after discount and rebate, $5.74 before taxes!
There is another deal at Staples making your OOP even cheaper. Since Staples honors competitor’s coupons, you can use this coupon there. The only difference with this deal and the Office Depot one is that you can only use your Staples Rewards at Staples. The pre-paid Visa card can be used anywhere.