Well you can now ask to borrow power from a fellow to charge your device, thanks to the new device-to-device charging innovation eCoupled Technology. The Wireless charging technology has now been around for a while, but eCoupled takes it to a whole new level - just place the two devices back to back and you can use power from one device to top-up charge on another. If this is not good enough there are more automation uses like automatic switching-on the TV when the remote is lifted from the Surface. Do see the video posted below.
This is not all the Wireless charging solution can also be used to perform automated tasks like :