Microsoft just launched Earn by Microsoft – a way to earn 3% to 10% in credits when you use your enrolled cards at participating merchants in Arizona, Massachusetts, and Washington. You can also earn 10% when you reload your Starbucks card online.
Right now you will also earn a bonus $10 credit on your first transaction of $10 or more. All you need to do is register your card once by providing only your 16 digit card number (No CVV or expiration to be provided) and then just pay with your any bank Visa or Master Card as you always will. You can then spend credit in Microsoft stores in the above states or online.