Originally Posted By SuperDry <<< Your magnet can also demagnetize the magnetic numbers across the borrom of your checks in your check book. This isn't a problem it will just take your checks an extra day to clear your bank. >>> This was certainly true originally. Athough the numbers on the bottom of a check were originally read magnetically, I'd be very surprised if this was still the case in practice. Optical technology has advanced a great deal since those standardized numbers were added to the bottom of checks.
Originally Posted By SuperDry And personally, I keep my satchel at least two rows back anytime I watch the Eletrical Parade for the very reasons expressed in this thread.
Originally Posted By EdisYoda <<Yes, the magnet will erase all the information on the strip, making it unreadable. But the card can still be used; the merchant has to manually type in the card number and expiration date.>> Alot of stores won't accept a card unless it can be swiped! So be carefull about that.