Thank goodness we're all a bit more enlightened nowadays. Even when I was at school, the teachers insisted that when writing we had our books straight in front of us which led to all sorts of weird writing styles from left-handers. I just turned my body at an angle and wrote much smaller.
I...
Left-handed as most people understand it. If you use both hands for different things then you're either a very observant Muslim or ambidextrous or both.