My favorite deals are often on gadgets that pull double duty — like the Twelve South PowerBug, which is currently on sale for the first time for Black Friday. The handy charging accessory, which can turn any wall outlet into a miniature MagSafe charging station, is available for just $39.99 ($10 off) from Amazon and Twelve South.
Thanks to a built-in magnetic charging pad located on the front of the device, the PowerBug can deliver up to 15W of power to MagSafe-compatible iPhones and…
