Have used the Citi Upromise Platinum Select Mastercard for the last 2 years and I still love it.  I am able to save 1% of my purchases in my Upromise account for my children's education.  There is no annual fee, but the APR is a bit higher than some of my other credit cards.  The payment due date also changes, which can be a hassel.  The website makes it easy to make payments online and keep track of your account.  Another great feature is that you can add your picture to the card and get online security account numbers to use when shopping online.  I have not used these features yet, but...