...and there ya go! Bobsyeruncle. I just got an old knife out that I don't use normally, to make a salad and slice vidalia onions as well. I tested it, yes dull, then got out a mug from an innmate in Maine and whisked it across the bottom a few times and voila!
So there ya have it, to the innsitter who travels with knives, you don't need to, just use a ceramic coffee mug at the inn!
My job oh so long ago when working in a pottery was to take the bottom of the mugs and cups and rub the surface across the abrasive stone to remove the residue from firing. What a boring job it was!!! I high tailed it back to college after that summer vowing I would never return to that factory
Yeah it is one of those DUH moments, so many helpful household hints we never remember!
Ie vinegar around the sink if you have ants, I have had them and bought traps to no avail, rub some vinegar or spray it.