This document discusses retrofitting existing devices with intelligence and connectivity through "smart skins" or wrappers. It argues that wrapping existing devices can save the sunk costs associated with replacing them, addressing the "dark matter" of existing devices not currently part of the Internet of Things. Some examples of wrapping technologies discussed include using power lines, gas lines, audio and video fingerprinting, and near-infrared spectroscopy to retrofit intelligence onto existing devices and enable new IoT use cases. The document advocates that wrappers can help accelerate IoT adoption by leveraging existing infrastructure rather than requiring entirely new connected devices.