Groupon offers the Eyn Storage Case for Apple iPhone 4/4S or 5 or Samsung Galaxy S4 for $9.99. Coupon code "SAVE10" makes it free. With $3.99 for shipping, that's $14 under our September mention and the lowest total price we've seen for this case for any phone type. It features a kickstand, mirror, and a hinged back with space for three credit cards and cash.
It may not arrive in time for Christmas.