The “maintenance” questions I get are about weird marker issues – when nibs get crusty, and crystalline, or dry and white – and I made a quick video with a marker that finally did “it” when I was ready to shoot film! It’s a quickie, so don’t blink.
The “My Virtual Studio” class, where this video is from, has tons more info in it – and it’s all FREE! If you have an account on my teaching site, you already should have MVS in your class list – you can just jump to the lesson you want to hear about, there’s no need to go in order. But it’s all about art supplies and how to take care of ’em – and you’ll find out what’s in MY studio!