The topic title says "One thing you miss from Oblivion or Morrowind", but how about the opposite I don't miss the repair hammer in Skyrim that's for sure.

However there is another thing that both Skyrim, Morrowind has and that's depth in both games in their own ways, but imo there were no depths in Oblivion period and of course the only thing there were accurate is the lore in Oblivion.

Other than that I can make a list of things I miss in Skyrim, but I won't do it in this thread since it would be off topic.
i miss being able to see my character in the inventory screen.
Me too.