On a Warrior, My character just disenchants loot when an Arcane Enchanter is nearby to learn Enchants, but the character may never take the time to really Enchant.
My Mages stash Enchanted items and Iron Daggers in a Bag of Holding, and when most Mage Skills are not really working to level the character anymore, all of the Enchanted Items get disenchanted, Iron Daggers, Circlets, and Rings get Enchanted with higher profit Enchants. The Enchanted Gear is sold to Vendor/Trainers to increase Mage related Skills. Enchanting on My Mages is good for a few levels, and tends to result in Mastery in a short time.
I will make items that increase Magicka Regeneration, and I try to get at least 25% in the Schools that use lots of Magicka, like Destrucion and Alteration, and possibly Restoration. I never have bothered with Enchants to lower the cost of Illusion and Conjuration.