A friend used to be given a small amount of pocket money each week and i remember her telling me that her parents encouraged her and her siblings to split it into three parts. One part they could spend, one part save and the final part had to go to a charity of their choice. This system was also encouraged to continue once they began to work in their early teens and make their own money. I think it's a great start for children to deal with money, responsibilities and giving to those less fortunate/sharing.