August 13 is International Left-Handers Day. Statistically 10% of the population are left handed. Notable lefties are Julia Roberts, Barak Obama, Leodardo da Vinci, and Prince William, not to mention Jack the Ripper, the Boston Strangler, and Osama bin-Laden.
All frivolity aside, left-handed people are more likely to develop schizophrenia, perhaps because almost all machines, tools, and everyday utensils are made for right-handed people. There are several stores and sites dedicated to providing left-handed products.
And this graphic was made available for from from http://www.lefthandersday.com