How Do You Keep a Safety Razor Blade Sharp?

Walls and Ceilings - Would like to create a razor blade slot in the back of my existing med cabinet

According to Reader's Digest, the old razor blades are the result of small slots in certain medicine cabinets found in homes built before the

razor slot in medicine cabinet Blade Slot: 2mm x 55mm; Can fit 100 double edge safety razor blades

razor returns slot I generally don't like having open razor blades around me, so be like me and print your own razor blade holder If the circular plate slots into the square