I started to get repetetive strain injury in my right hand sometime last century from drawing with a mouse. I'm an animator so that was a bad thing. Got a wacom for the right hand and started to mouse with the left hand.Turns out both at once is a good way to work. Mouse is better for 3D work that requires precise clicking, and the wacom just nails the process of drawing on a computer. Keyboard sits at the top of the wacom when I need it. Did not take long to learn to be ambidextrous.