sentences:  Slaves occasionally earned money through their normal work or for particular services renderedfor example, Washington rewarded three of his own slaves with cash for good service in 1775, a slave received a fee for the care of a mare that was being bred in 1798 and the chef Hercules profited well by selling slops from the presidential kitchen.Slaves also earned money from their own endeavors, by selling to Washington or at the market in Alexandria food they had caught or grown and small items they had made.They used the proceeds to purchase from Washington or the shops in Alexandria better clothing, housewares and extra provisions such as flour, pork, whiskey, tea, coffee and sugar.