Here is a goal: How can you sharpen and extend the life of your personal razor without dis assembling it?

How would you accomplish this goal?

OPTIONS:
*Rub the shaver against old beards or whiskers to dry and sharpen it.
*Rub the shaver against old jeans or denim to dry and sharpen it.
Rub the shaver against old jeans or denim to dry and sharpen it.