take a magic item. one you do not want to use. ever. disenchant it. now enchant that ability into somethiing. this will slowly up your enchanting.
when you find an enchant you like on something that you don't actually want to use, disenchant it and put it on something you want to use. if you buy perks you can enchant better stuff.
uesp.net is the WIKI. readup http://www.uesp.net/wiki/Skyrim:Enchanting