MSNBC - New credit card for Jews won't work on Sabbath
COME ON. Why would there ever be a market here? Do you really need a credit card to enforce this? Anyone who can have a credit card could have another credit card that would work. And further, this only works with stores that are closed, since all stores have this wonderful thing invented about a hundred years ago called carbon paper as a backup. Ultimately, this just comes down to self control. Or, as I just mentioned to my friend, "I know I could stay out of the fridge if I just did not go in the room, but instead, would you mind attaching this shackle to my ball sack?"