This is a test of commonsense. Complete the next sentence:

How to razor cut your own hair
Purchase a razor comb and razors.
A razor comb is typically divided into three sections. The end of the comb contains a regular comb.
The front of the comb is divided into two different sides: the small-toothed side and the wide-toothed side. The wide-toothed side can be used to create choppy layers.