Wooden planes = no rust. One reason I love them! If you keep your irons honed and in use, no chance for any important rust there either. I just clean the chips / shavings / dust out of them when I'm done, and I'm happy. My hands are always dry (sometimes causing problems like cracking / bleeding in the winter) so I don't rust tools just by touching them. I guess I got lucky. Besides keeping my tools clean, the only rust-preventing steps I've taken is to store all of my tools in my large tool chests and to keep somewhat fresh silica packets in the chisel trays. Every time my wife buys shoes (frequently...) I snag the packets and change them out.
Your endgrain is like your bellybutton. Yes, I know you have it. No, I don't want to see it.