I recently bought a yoshihiro knife for school and work and while I'm happy with my purchase I'm paranoid about maintaining it since I've only used stainless before this. So a few questions 1. Is a simple water/soap/dry after each use routine good enough to prevent rust? How much of a window do I have before I need to clean it(as I am not yet very quick with prep) 2. Is it true that touching the blade can cause rust? Will washing immediately after prevent that? 3. What problems should I watch out for? I've heard discoloration is normal an inevitable but I want to avoid anything that may destroy the blade Any other tips are greatly appreciated.