Chef Knives! The earliest tool known to humanity. Whakarongo mai nei to hear Sam's take.
** Also, here's a follow-up tip from Sam!
"Every air bnb I’ve ever come across have super dull knives and if you’re lucky they might have a knife sharpener if they don’t, use the under side of a ceramic bowl or mug where the rough unglazed part is exposed and sharpen the knife on that!"