Southpaws, unite!  Approximately 10% of the world's population is left-handed.

Tip: With your little ones, today is a perfect day to teach left from right.  With your left hand show that your outstretched pointer finger and thumb make a "L" as an easy reminder as to which hand is the left one.  Have your child trace his/her hand as well as your hands.  Cut the hands out and put the left hands together and the right hands together.  Hide the left hand and have the right hand "mate" find the left hand.  And at the end of the day, be sure to give your child a hand for another fun day together!