Today's upload covers my reasons for using a pen/tablet workflow over a mouse/keyboard (... I still use a keyboard). Spoiler: ERGONOMICS! It's important to find a setup that allows for a repetitive work schedule without injuries. As an animator I have relied on a pen and tablet plus keyboard and marble mouse combination for years. Any 3D artist (and 2D artist for that matter as well) deals with repetitive tasks and the risk of injury is high because of it.