The Lord of the Rings: The Return of the King Cheats

Go get a character that can equip a two-handed weapon, and a shield. Then, equip the sword and shield alternatly, and you will notice your damage on your stat screen going up. Carve armor runes to make your armor level rise too. This works with Eowyn, Gimli and Aragorn. The bug will reset once you leave an area.

If you are playing in multiplayer, there is a simple trick that you can use in order to give items away to other people without losing the item yourself. When you are in multiplayer, choose an item and give it to the other player. Then, quit the game without saving. Have the other person save and quit the game. When you reload, the game will not have recorded that you gave away the item so you will still have it. Since the other person saved, they will also have the item.