If you love skateboarding, snowboarding or just gliding around on wheels, you have to try a caster board. They are made with just two wheels and have two separate platforms (one for each foot.) Rather than pushing off the ground to gain momentum, you simply twist your feet on the platforms. It's truly revolutionary.

A caster board (or castor board) is a two-wheeled, human-propelled vehicle, closely related to the skateboard. Two narrow platforms are adjoined by a rubber or aluminum coated metal beam that houses a strong spring. Each platform contains one wheel that is connected to the board in a way so that each wheel can rotate independently.