a rough sketch of how I imagine saddling and riding a giant spider would go; these spiders have horns or whatever so I don't have to imagine how a bit would fit into a spider mouth
my fingers
(just pulling your leg lol)
I type mainly on Google docs so I can ping-pong off between my laptop and my phone, though I do use my notes app for miscellaneous nonsensical comments or worldbuilding and some goofy looking doodles