Unequip for the Win
In the origins stories, be sure to remove all the items of those that accompany you (and leave your party) prior to their departure. You may need to save the gaem more often. You can use these items to sell or equip as needed.
Another example: once you return from the Kokori Wilds, before talking to Duncan, remove all the equipment from Jory and Daveth since they are destined to die.