Always thought avoiding was best, but @angela_knight3 showed me guilt is worse.

Actually, it still ruins some cakes!

Jesse_jenkins has a point about good steel or mild air letting you get away with less care. But that luck runs out fast if your climate turns or you get a tool with less great metal. I've seen "just wipe it" work in a dry garage, but that same habit ruined a plane blade in my damp basement. @the_patricia is right about the thorough dry. It's the combo that works: clean off the gunk, then get it bone dry, especially in any humid or salty spot. Otherwise you're just leaving the problem on the metal, even if it takes a year to show.