Question: Keep your knife edges sharp in a drawer.
Options:
Purchase some large tubing and cut to the length of your knife. Put your entire knife inside the tubing and store in the drawer.
Purchase some small tubing and cut to the length of your knife. Put this on the edge of the knife and store in the drawer.
Answer: Purchase some small tubing and cut to the length of your knife. Put this on the edge of the knife and store in the drawer.