Rusty nibs! How the internet tells you to care for calligraphy nibs, and what I actually do!

I had an email from Sarah the other day – she’d been to one of my calligraphy workshops and kept her nib – but within a few months it had begun to rust. She asked me for advice: is there a best way to keep calligraphy nibs, to prevent rusting? Now I go through nibs …