Another idea someone could do from home is to start a service or write a software program that scours local ad listings (like craigslist) for a particular used item a person wants to buy. They have services like this for new items, but not used. I know others like me who are keeping their eye out for something used (like a canopy king bed!) but don’t have the time or inclination to search for it every day.
One of the most important internet marketing strategies is to develop every customer's lifetime value. At least 36 percent of people who have purchased from you once will buy from you again if you follow up with them. Closing that first sale is by far the most difficult part -- not to mention the most expensive. So use back-end selling and upselling to get them to buy again: