Go to the inventory screen and equip any Scroll that you have multiple copies of (for example, five Superior Convalescence). Once the Scrolls have been equipped, press [Space] again while still in the inventory screen. Then, drop the item you want to duplicate (for example, Grand Soul Gem). You will now have the same number of that item as you do Scrolls. Note: You must have less items than Scrolls or this trick will not work.
Permanent enchantment
Duplicate the item you want to permanently enchant yourself with. You must have two of them. Equip one of the items, then proceed with the normal duplication trick, but drop the unequipped item and you will notice that both of them drop. You will not be able to re-equip that item again, but the effect it granted will now be permanent.
Evidence chest
At the southern most point of the Shivering Isles, south of Madgod's Beet, is a cave called Corpserot Prison. Inside at the very beginning of the cave is the Evidence chest. It is in both Mania and Dementia. Note: On your map, Corpserot Prison is called Corpserot Passage.
Cheat Codes
While playing the game, press ~ to display the console window. Then, type one of the following codes and press [Enter] to activate the corresponding cheat function. Note: Original codes from the The Elder Scrolls 4: Oblivion may also be used.
Item codes
Use one of the following values with the "player.additem [item code] [amount]" code: