Copy an item
1. place item you want duplicated on th ground.
2. walk away, straight line if possible.
3. with inventory closed and a potion in your belt, click on item.
4. the moment it is picked up click on the potion.
5. drop the potion, if this is done right, it should be a copy of the item.
6. this will take awhile to perfect, but its well worth the trouble.