The enchanting perk "Extra Effect" that allows you to enchant items twice - Does this work on clothes, or just armor and weapons? I'm assuming it works on clothes but I'm just looking for confirmation.

In addition, do you think this makes clothes, with +armor enchants, or +HP enchants, makes clothes/unarmored a viable armor choice even for non-mages?

It saves you skill points because you dont have to skill up an armor tree, basically. Is it worth the sacrifice?