I don't have much experience with smithing. I do have it at 100, but I only used it to make Steel Plate armor and Dragonplate armor and some various jewellery. However, I was thinking. Last night, I dreamt I was a redguard in Riverwood and I took some of those cool redguard clothing and put them on a workbench and made them legendary , giving them a decent armor rating. Then I enchanted them. Wouldn't it be cool if you could use a work bench to improve clothing? I think it would. Now, you could say what is the point of that? Well, clothing is pretty cool. Plus, you have maximum mobility and there are no penalties for sprinting in them. I mean, you can enchant them, so why can't I improve them?
Also, it would be neat if we could use a Grindstone for various misc items such as Brooms so you can use them like swords, grind some dwemer scrap items like those large struts and use them as a blunt weapon or something. After playing Assassins Creed, I can never look at brooms the same way ever again. Same goes for fishing poles XD
I think it would make the game fun and add a variety of options.