Baking soda is a poor man's water softener. Pull the sink stopper and pour in one ounce or 30CC into your bathroom sink to make the water super slippery. Dip your razor in there after each pass. When it comes time to stop, don't rinse the blade off with water from the faucet; just dip it in the sink water and set it aside on a towel. I've been doing this for a few months now and I'm amazed at how long the blades last. Before that I was using straight hard water and I'd only get two shaves out of the blade.