First, find a locker not a chest or car trunk. Then Place items you want doubled. Save the game after that press "ALT-TAB" to go to desktop. Find file folder C

rogram files blackisle fallout2 data savegame slot# map file....ok the number symbol is the save slot number then the map file is the place where you are currently for example if you are in "Klamath" look for Klam.sav file (something like that). Drag it out from the folder onto the desktop (do not right click to cut or copy) must be dragged to desktop. Then go back to the game and remove your items from the locker, then save again. "ALT-TAB" again then go that same folder and delete the save map file then drag the file that is on the desktop (do not replace that file must be deleted before the first file), then go back to the game, then load the game...then check the locker and you will have doubled your stuff...good luck