I'm 73 years old, 74 in December and I have around 350 DE blades: at this time 95 Gillette Platinum which I use in my techs, 100 Silver Star used in my other razors, 49 injector used in my Schick L1 and new Supply SE and around 150 other DE blades waiting in the wings - Astra, Dorco, Lord, Shark. I get 4 shaves per blade and I shave every day so enough for nearly 4 years touch wood. However at this time I'm gravitating towards injector with which I get 8 shaves per blade so that's over a year. But my major concern is whether the free tv license will be removed just when I get to 75 and qualify for it.