What credit card are YOU using?

So I am a credit card rewards FREAK. For years we've been using Discover for all of our purchases and reeping the benefits by collecting a check every few months that seems to add up rather quickly. Well for the past 8 months I have been using Citicard Mastercard and i LOOOOOOOOOOVE it. Instead of the weak 1% given out by Discover, my Citi card gives a whole 5% cash back on groceries, gas and drugstores (and 1% everywhere else)... the places we shop most. The ONLY CATCH to this card is that the maximum amount of cash back you can acrue in a year is $300. In the little over 8 months that we have used this card, we have earned $285. My plan was to cancel the card and sign up again so my 1 year $300 period would start over. I stumbled across an ad in the paper for a Citicard "Diamond Preferred" mastercard. This card has no maximum (or, well, actually a maximum that is so high that noone could ever possibly reach it)... BUT... instead of cash, you get gift cards. Just for signing up we got 5,000 bonus points which we can redeem for a $50 GIFT CARD!!! That's right... just for signing up. In addition, we continue to get these "bonus points" for each of our purchases which are equivalent to the 5% at gas, groceries, drugstores and 1% elsewhere. So seriously... go here and get this card... you'll love racking up the benefits! You would be shocked at how much you can earn by just putting your gas on this card instead of paying cash. (That's a savings of over $.10 per gallon everytime you get gas!)