American Express has a great new Sync offer giving $10 back on any $50 or more purchase at Office Depot or Office Max! Enrollment is open until 12/31/14 however, there are only a limited number of sign ups available so this is first come first served.
You can log in to your American Express account and check the “Amex Offers for You” tab to enroll. If your account was not specifically targeted, you can still enroll by simply tweeting
#AmexOfficeDepot and you should get a response stating your linked account has been enrolled. If you are not familiar with using Twitter to sign up of Amex offers you can get more info at Amexoffers.com.
Office Depot/Office Max sell Visa and MasterCard gift cards which can be loaded to Bluebird/Serve making this offer a good way to get a few extra free miles or help hit the minimum spending requirement on your new American Express card.
FYI – Once you Sync a card you can disconnect it from Twitter and connect a different card to enroll as well! The offer will stay tied to the card after you disconnect it from Twitter.