Ambidextrous:
Posters, chalkboard, hammer, screwdriver, linesman's, drawing -- Left hand.
Operating lathe, Bridgeport, surface grinder, and fixed power tools --- Right hand.

Writing, eating, portable power tools. - whichever hand is convenient.
Started writing left handed until the left hand suffered too many welts from the steel meter stick, in early elementary school. Later schools did not care which I used, and have since used either. My rodent for this computer is convenient left handed, at work - right handed.

Guess that means I am just plain confused.

Slainte