Credit cards can be evil.
But used properly they can provide convience, FREE insurance, and Frugal Vacations. If you have read the book, you know what I am talking about.
Currently there are two cards that are the best everyday cards – Why, they provide effectively a 2% cash back on all purchases. Have all your bills automatically paid with this card and save 2%, and have one bill to pay. Plus they Extend the manufacturers warranty on product purchases.
These cards are: CIti Double Cash Mastercard, and the Fidelity rewards VISA For more info click on the card name.
Note I receive no compensation for these links or the information about these cards. 
Also these cards have no annual fee!