Update: This credit card has changed since this article was published. You can check out the most up-to-date details on this card here: American Express Serve®.

American Express® Serve announced a new limited time offer of $50 when new customers sign up for direct deposit and receive two deposits of $250 or more by September 30th, 2013.

Update: This credit card has changed since this article was published. You can check out the most up-to-date details on this card here: Discover it® for Students with $20 Cashback Bonus.

You know what never hurts when you're in college? A free $20 bill. $20 in my pocket could last me almost a full week in college, until the inevitable Friday night beer run, of course. Free money is always good, but it's especially useful in college when being broke is more or less the norm'. 

Anyone with a smart phone or a tablet knows that e-financing and mobile banking apps are constantly out-doing one another for iSupremacy in the digital finance age. Researching the best ones often amounts to a lot of reviews-reading and - unfortunately - some serious trial and error. And it sure feels like as soon as one feels right, there's another, better option to take its place.

Update: This offer may have changed since this article was published. Check out the most up-to-date information on this card here: Citi ThankYou® Preferred Rewards Card.