The lights are on
When you get to a trader that has two of the same weapon or apparel the glitch will work. you buy one ( i advise the cheaper one to make the process faster) and sell it buy angain and sell. repeat until you get the item bought and it is at full condition. sell it buy it and sell until you have all thier money. i use this often and have over 10,000 caps now. If you dont like to cheat dont use it.