Those who can't find regular work almost inevitably end up dead or as scavengers. They make their living from rooting through scrapped raw materials in search of anything worth using or selling. Most scavengers are rather poor if resourceful people who can see the silver lining in almost any situation. Veteran scavengers are skilled in the arts of living off the land and working out an items worth.
Eye For Value: If you spend 10 minutes examining an item you can work out the exact value of a single Common and Uncommon items. Waste not Want not: You know how to find genuine treasure amongst trash. Whenever you make a Perception roll to look through largely invaluable items including scrap metal, old sundries or spoiled goods, you can add 2 to the result.
Scavengers tend to be optimists in almost any situation. In addition, they also tend to be superstitious about particular finds and will guard these from prying eyes if they feel threatened.