>>21565621
you don't need to do it the sexy way with the big metal rod (although that's not exactly hard to do), I've been using something like pic related and that's kept my <£10 kitchen knife as sharp as day one for a year now.
https://www.sealantsandtoolsdirect.co.uk/knife-sharpener-with-suction-base-270466?language=en-gb¤cy=GBP