1)Hand wash your knives. Do not put them in the dishwasher.
2)Use wood cutting boards. Granite, marble and glass cutting boards dull your knives faster.
3)After each use wipe your knives down with a dry towel.
4)If you store your knives in a leather sheath for a long period of time, coat the blade with a lil bit of cooking oil. Will keep it from rusting.
5) Use the proper tool for the job. dont pry with your knife or use as a screw driver.