The razor is the most commonly used shaving tool for both men and women. It is because they are so easy to use, cheap to buy, and the risk of cuts are pretty small. There are many different types of razors, from cheap disposable plastic ones to the exclusive handles that are stable in the hand and provides greater control.
Perhaps the biggest advantage with using a razor is that you can quickly and easily change blades. For disposable razors you throw away handle and all, but for the other types you simply replace the shaving head only and keep your handle. For a Mach 3 razor you buy new Mach3 blades, for the Fusion you buy the corresponding multi-blade system. You simply keep your favorite handle or you can upgrade to a more luxurious one.