I was reading a recent post about caring for straight razors, and a member noted he dipped his blades in a mixture of denatured alcohol and mineral oil after shaving. The former ingredient is used to dissolve soap scum, the latter to coat the blade between uses. I've noticed with time my blades have accumulated a fair degree of soap scum, especially in close proximity to the edge where I dare not wipe with a tissue. Any other tricks out there for removing soap scum post shave? Is rubbing alcohol equally effective at removing it?