i love clark howard..he is a talk radio host who is a consumer advocate and financial guru.
i was listing a few weeks ago and he had a listener call in and tell about his experience 
maximizing the life of his razor blade..
well i guess for a couple of years his listeners have been doing this, if you dry your razor after you use it, it will last longer..your blades don't degrade from shaving but from the moisture. 
so clark tried it. he used a 17 cent razor..mind you 17 cent. and he made it last 1 year..wow!
he just dried it with a towel each time he used it. and it did last 1 year.

i am going to buy a 17 cent razor tomorrow.