Say you wanted to protect your Wi-Fi network from surrounding buildings. The most obvious way to do this would be to secure the devices on your network using the wireless security protocol of choice.

I wrapped my router in foil; download dropped ~50% and ping rose ~67%, so the signal was partially blocked. Upload barely changed; upload speed seemed ISP-limited, not much affected by the foil. My ...

Kelsey is an Associate Editor and Social Media Coordinator based in Charlotte, North Carolina. She holds a BA in English and psychology with an emphasis on writing from the University of South ...