You can make "disposable" razors last a very long time by rubbing them on a piece of old denim in between shaves. Most of the wear on razors comes from oxidatio

You can make "disposable" razors last a very long time by rubbing them on a piece of old denim in between shaves. Most of the wear on razors comes from oxidation from air and water vs. cutting hair. I believe doing this helps remove the oxidated spots. This means I can make a pack of them last 12-18 months, and I only need a new razor when the plastic/silicone housing and pads break. Reading the other comments I should still probably invest in a more permanent razor though.