Question: where does the phrase brownie points come from

title: Brownie points
text: In the 1930s , The Curtis Publishing Company , published several magazines , including the Saturday Evening Post and the Ladies Home Journal . These magazines were distributed to subscribers through a delivery network that used youths , primarily boys , to go around to the individual houses . The boys received a small commission but , in return for meeting certain sales targets , they could also receive company scrip , comprising green and brown vouchers . These vouchers were usually known as `` greenies '' and `` brownies '' . Five greenies equalled one brownie . The greenies and brownies could be redeemed against goods from the company 's catalogue .