Grumpy Old Geeks Products Wally Bifold Product Wally Bifold 2 mentions in 1 episode The Wally Bifold is a slim wallet that one speaker considers ordering. Mentions 97: Airgapping Our Grievances Feb 21, 2015 1:20:39 a wallet called the Wally Bifold. It is the slimmest wallet I have ever seen. 1:21:14 you can order it now. It is out.