Summarize this article in one sentence.
Disenchant one of your items with Fortify Smithing, and equip the other one. You'll need to disenchant an item in order to gain knowledge of that enchantment; this is why you need two of each. You can use an Enchanter's Elixir for this. With a level 100 enchanting, plus an Enchanter's Elixir, your Smithing Enchantment will reach 28%. Wear all of your newly enchanted armor, drink your Blacksmith's Elixir, and craft all your weapons and armor. Blacksmith's Elixir only lasts 30 secs; the time runs even when you're crafting, so be mindful of the time limit. Go to the Grindstone and drink another Blacksmith's elixir, then upgrade your weapon until they are Legendary. This will boost your weapon's damage to around 50% or more. Use the Workbench if you think you've still got time before the Blacksmith Elixir expires. Immediately proceed to upgrading your armor to legendary, if not then take a Blacksmith's Elixir first. Like the weapon, your armor's defense will increase dramatically once it turns legendary. You'll probably kill almost anything in 1 hit or so. Of course, that would make the game a tad bit boring, but it's always useful for those difficult missions. Have fun!
Go to any Enchantment lab. Enchant 1 piece of body armor, gloves, necklace, and ring with Fortify Smithing. Head for a blacksmith's forge. Upgrade your weapon to Legendary. Upgrade your armor to Legendary. Wear your new armor.