Razor blades and how they can last a lot longer

And finally I have a tip for you which
a) works
b) and saves you money

I always get mad about the high price of razor blades as you know, the are extremely expensive.
Finally I found out how you can make your razor blades last longer and keep the blades sharper. Take the razor blades and sharpen them on an old pair of jeans. Go 30 times in one direction on the jeans and 30 times in the opposite direction and apply some pressure.
I have done this for quite some time and the blades are sharper much longer.