Many people in the realms are able to make their living off the work of others. They roam from place to place, buying items and then, selling them at higher prices. Those who are really good can use their wits and charm to barter and haggle and obtain cheaper prices than normally given to others. It may take flirting, compliments, or down right ass-kissing, but they can come away with their wares and a few extra gold to spare. Some are good enough that their reputation precedes them, shops close for the day if they hear that person is to be in town.