I’m a big fan of anticorrosion emitters. You can get them from many places including Lee Valley. They are in my safe, gun cabinet, display cases and tool boxes. They last for five years, and you can also get VCI paper to wrap stored metal objects in. They work like a charm. After using and rinsing a blade I carefully make sure it is actually dry with toilet paper and them strop it and off it goes. Many people also use renwax. Oils can trap moisture.