A supplemental income source is the holy grail for many people these days who dream of being able to afford an extra holiday or two or a new home or car. Often the second income is pursued as a means to an end such as a simple increase in cash or sometimes it is the start of a business for which they do not have the spare time or cash reserves at the start to work on fulltime. Other ways of earning more money include getting proficient in the share and stock market or even buying and selling spare stuff on ebay.