Today only. Woot! has the Powerbag 3000mAh Gadget-Charging Bags (black or grey messenger or red sling) for $40 + $5 shipping = $45 shipped
. These are easily $60+ elsewhere. A built-in battery system charges phones, tablets and holds up to 16" laptops. 30-pin Apple, microUSB/miniUSB connectors and a USB port all included.