7 years ago, I noted that RFID tags can be remotely read out of your wallet, and suggested lining wallets with aluminum foil as a countermeasure. At the time, a reader emailed to say that a good fashion designer could do interesting things with this idea.
Metal-lined travel wallets have been on the market for a while now, but today Grand St. brings me news of this. It turns out that sometimes you imagine things and then they happen.
UPDATE 2013-06-24: Hmm, interesting detailed negative review of the first version:
The current (version 2) wallet may not suffer from all of the issues highlighted in this review. Also note that I can't find any independent testing of its alleged RFID-blocking effectiveness.