Rewards are just like cashback at any store. With Office Depot it will be credited to the account 5-7 days.

1. Buy 2 packs of the $12 3 reams paper = $6 oop 

2. Buy 2 packs of batteries at $15.99, but all back in points = 0 oop

3. Buy 3 packs of the $6 paper = .03

4. 20% off your total purchase code: 50734560

The grand total will be $6.03 + tax after considering rewards, and not just that Retailmenot will pay you $10 = $3 MM and everything free. To earn $10 from Retailmenot is easy. 

1) Create an account

2) In the search bar, write "Office Depot"

3) Click on the Cash Back Offer $10 Cash Back for Online Purchases of $80+

I know it's crazy to fork up $76.36, but you'll get it all back in rewards and an additional $10 from Retailmenot. You don't have to buy everything. Just try to get cash back on things you need. Now I just don't know what I would buy with $80 worth of rewards...