How can I find out which enchantments that I know?

In Skyrim, there is an Enchanting mechanic. You learn an enchantment by disenchanting something with that type of enchantment. Other than by visiting an Arcane Enchanter, is there a way to find out which enchantments that I've learned? This will help me by reducing the amount of enchanted weapons that I hoard by letting me dispose of items whose enchantments I already know.

There is no way to know which enchantments you have learned other than visiting an arcane enchanter or keeping track of it manually.

Or there is a Mod on Skyrim Nexus that appends the name of items that are currently disenchantable by your character with a (U). it's called "Unknown Enchants". Link: http://www.nexusmods.com/skyrim/mods/32380/?