Comic books are not something I'm too clued up on, so I have to confess my ignorance - I had no idea who Paolo Rivera was before watching this video. More fool me. Dang he's an amazing artist. Seems like a good dude too.
As someone who can spend 60+ hours working on a painting, Rivera has shaped his workspace to be super efficient. His pens, pencils and erasers all stick to his drawing board with magnets, he's made a wire doodad for keeping his brushes off the table (totally stealing that one) and his one-handed brush wringer is beautiful. He also shows off a bunch of nifty tools and techniques.
Being mindful of stuff you do over-and-over when you're working, even the stupid stuff, can be useful. It took me months of awkwardly stretching for the just-out-of-reach volume dial on my radio before realising that if it was, like, right beside my computer, I wouldn't give myself a hernia every time I watch a YouTube video (and I watch a lot of YouTube videos). It didn't make me better at drawing, but it made day a little easier.
The 3-part Making of "The Twelve" Cover with Paolo Rivera series by the same folks is worth a nerd out on too. His process is fascinating. There's a surprising amount of tech going into a fairly small gouache painting, but it's all there to help him make the image he wants to make. Rivera's workflow, like his studio, has been refined by doing his job over-and-over again.