The latest Leatherman packs bigger, stronger pliers, plus 18 more tools to build your house and skin your dinner. A new locking mechanism causes dull-edged tools to pop out together but knives to stay safely in place until you pull them. Leatherman Super Tool 300 $84; leatherman.com
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.