I know this might be a somewhat less important facet of shaving, but I figured I'd ask. What do you all do with your offhand while you're shaving? Are you stretching the skin and feeling for stubble? Do you just let it rest? I ask because I find that my offhand is pretty lazy... I've been shaving for almost two years with a safety razor but my offhand is still inept. How important is it to use that offhand to get a BBS shave?