If you're a frequent Dunkin Donuts customer, you might be interested in a promo they're running with VISA that'll allow you to get a free $10 to spend at DD. You'll need to load $25 or more onto a new or existed DD card using VISA Checkout. Once you're done, the card will then have $35 on it, meaning you get to spend $35 at DD despite only paying $25. Great, just what I needed in my life, more donuts.
You have until Feb 7 to take advantage of this offer and it's worth mentioning that VISA Checkout actually works with MC, Discover, and more!