You would have an RFID blocking wallet if you had any sense, otherwise anyone with some cheap kit could skim your cards or track you; card issuers are frankly negligent the way they issue RFID cards, including by post!!!
Eagle Creek (from http://www.ultralightoutdoorgear.co.uk/) make some practical RFID blocking wallets, unlike the impractical carp found on Firebox etc.
I have my work RFID card on one of those yo yo things at work because it has to be visible at work but I refuse to use a lanyard, and it gets put in a pocket after leaving work. I have also had fun with forgetting cards behind doors with a push exit button, so it helps to have it visible to ensure that I can exit work especially on the brief occasions when reception is empty!
Biting the hand that feeds IT
