I had some pain in my right arm directly attributable to mousnig, so I
learned to left-hand mouse -- but only for the large movements. I couldn't
ever get my mind to wrap around the swapped left and right mouse buttons, so
even when I'm left-handed mousing, I'm right-handed clicking. It confuses
everyone but me.

-- Adam Maass

Hi there,

I suffer from pain in my right-hand "pinky" (the smallest finger) so...
I'm using my mouse with the left-hand, since years.  I don't know
if it's really related to the mouse or not (I sure didn't had the
problem
20 years ago, when I had no mouse... But then at that time I hadn't
many years of typing behind me either).

However the buttons stays the same: I don't switch. A "right-click"
is really, in my situation, "a click on the button that is on the right
of the mouse".  So I don't need to configure anything.

I'm mostly mouse-ambidextrous: I can do everything, including
photo-editing, using both hands.

The only case where I sometimes switch the mouse to my
right-hand is for playing... (lately I tried some "Java 4K"
games and found myself switching back the mouse to my
right hand).

That said my pain is so bad that I'll have to go back to see a
specialized doctor for this and maybe undergo a chirurgical
operation :(

Another good trick is: use your keyboard as much as possible,
don't rely on the mouse for things that can be done with the
keyboard (ie mostly all).

(Damn, you got me started on the "input efficiency" subject)

That said I'm somehow an "keyboard nerd": IBM Model-M
configured so my fingers travel as few as possible (CTRL at
the left of the 'a' key, where it was on the real things and
where it still is on some Mac keyboards [I'm french, but I
use a qwerty layout, the french layout just doesn't make
sense for programming], escape at the left of the '1',
enter/return done by CTRL-M [two keys, but way less travel
and it eases my Pinky]). I'll probably dedicate a webpage
to my MODEL M's for I may have the nerdiest of them
all: all keys are "blind" (the keycaps are in two parts, I
removed the upper part) besides for the 'f' and the 'j'.
I touch type everything, including the function keys (which
I try to avoid the most that said, they're just to far).

It will turn 20 years old this year, damn...