Genuine tip
Have your Kitchen Knives gone blunt? No Knife sharpner available.

Simply get another knife, and - sliding the edge of the Blunt knife against the back of the other knife to 'true' up the edge works wonders.

If you notice the knife is a little blunt, do the above and notice how much shaprer the knife now is.

For some people the above might be obvious, for me it really wasnt.
(Dan dan dan They tik urh jerbs!!!, Thu 8 Dec 2011, 14:32, 3 replies, latest was 13 years ago)

This works
(of a fashion) with any reasonably sized and shaped piece of steel. I've worked in meat slicing factories where the tables are made of stainless, and used to regularly strop my knife on the corner to keep it keen.
Never thought of doing it with another knife though, I must admit.
(Hairy Bob, Sat 10 Dec 2011, 19:03, Reply)

I've seen someone do it
with a fork.

Pervert.
(username failed moderation, Mon 12 Dec 2011, 14:28, Reply)

can also sharpen them on the unglazed ring of ceramic on the bottom of mugs and plates, provided you wet them slightly.
( 6821isnotmyPIN Bored cig., Wed 14 Dec 2011, 16:03, Reply)