USB microSD / M2 Memory Card Reader for $1 + free shipping
Meritline offers this USB 2.0 Flash Card Reader in Gold for $2.99. Coupon code "MLCKY01JNL1" cuts it to 95 cents. With free shipping, that's the lowest total price we could find for such an item by $2. It features a USB 2.0 interface and accepts microSD, microSDHC, and M2 cards. Coupon expires after 300 uses.
Expect this item to take two to three weeks to arrive.