As one of its daily deals, Groupon offers the Eye-Fi Pro X2 16GB 802.11n Wireless SDHC Secure Digital High-Capacity Card, model no. EYE-FI-16PC, for $69.99 with free shipping ($4.37/GB). That's $8 under our December mention and the lowest total price we could find by $12. This card stores pictures like a standard SD memory card, but it also connects via WiFi directly to your PC or Mac (no router is required). Deal ends November 6.