Amazon has the Levi's Men's Extra Capacity Leather Slimfold Wallet (Brown) for $12 with free shipping for Prime Members or on $25+. Retail price: $20. Features 100% genuine leather, 100% man-made-materials lining, no closure closure, spot clean with a damp cloth.
Has good Amazon Reviews.
eBay has the Alpine Swiss Men's Bi-fold Leather Wallet (several colors) for $9.99 with free shipping. Features three inside card slots, an ID window, and measures 4.12" x 3.25" x 0.625".