A fast way to get up any magic except destruction is use the disired magic spell next to a bed and when magicka is empty sleep and regain it...easy

You can get up your heavy or light armor by getin a small bounty (lowest I've ever gotin was 5 by geting caught by a guard picking a lock) and then resist arrest and let the guards attack you(but don't attack back as that will just increase you're bounty!!! So just stand there) and when your low on helth just pay the bounty...also make sure your armor has good helth because if it is really badly damaged you wont get up any exp.... You should also put the game difficulty to the easyest so they take down less life...you can also get your block up doing this as well as your armor skill(smithing) by fixing your armor after wards...

The Cheat That We All Love, Works On Oblivion And Oblivion GOTY!
For All That Dont Know It Here It Is.

1) Get Two Magic Scrolls Of The Same Type. (They Must NOT Be Stolen)
2) Click On The Scroll Twice.
3) Then Drop The Item From Your Inventory That You Want Duped.
4) Exit Inventory And Collect Your Items.

Please Note That
Certain Weapons, Armor And Items Won't Work
The Health Of The Item Must Be 100 (Get It Repaired By An NPC Just To Be Safe)
The Charge On A Magical Item Must Be Full