A 12-foot trailer for $299? Sounds like a sweet deal to us. DIY trailer kits from U-BUILD-IT came with everything you could possibly need for a basic shell: windows, doors, exterior panels, tires, roof ends, and a chassis, to name a few. The kit required no experience and no expensive tools.
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.