My Evil Undead Credit Card
Doesn't everyone know this?  You can't enter into a contract with someone and then just pull the payment instrument out from under them.  Even if they stopped charging your credit card, they could still sue you for the amount you owe them.<p>You have to cancel your gym membership if you don't want it anymore.  Send them a registered letter and CC the state's Attorney General office if they won't cancel the account for you.<p>Edit: Wow, I just realized this is Arrington's blog.  Isn't he a lawyer?  How can he not know this stuff?