CapitalOne is offering $50 for opening its InterestPlus Savings Account with the offer code EXTRA50DF and making sure the account has $10,000 or more in it on 5/15/2010. I'm calling this Your Miles May Vary
since the small print at this promotions page
states "You are eligible for this promotion only if you received this offer from Capital One." Credit for this find goes to this SD thread.
For more info on CapitalOne InterestPlus Savings account, please refer to my InterestPlus Savings review