Try using the wrist roller a couple times a week. Knuckles "back" and knuckles "forward."
Holding your arms/hands at a funny angle all day working overworks some parts of your hands/wrists/thumbs, while underworking other parts. Like making your hand a twisted claw.
The wrist roller, going both ways, is easiest way to make sure everything in your fingers/hands/wrist/forearms is getting some work. And while "tops" of your hands are wrists work, the "bottoms" stretch. And vice versa. It's great.