This trick requires access to Arcane University, a Chameleon spell, two rings, a necklace/amulet, any two pieces of armor (preferably a helmet and shield; you could use any armor for this, but you may want to enchant them with defensive magic later), five Grand Soul Gems with Grand Souls in them, and 8,000 gold. Go to the Chironasium (enchanting section) in Arcane University. Go to an enchanting stand and enchant the necklace, rings, and armor with a Chameleon spell using the Grand Soul Gems. Each enchantment gives you 20% Chameleon effect, so all five enchantments will make you 100% Chameleon, which is not only invisible but also allows you to attack, steal, open, and pick-up without being revealed. You can now steal from a shop without the shopkeepers doing anything. Your enemies will also just stand still unable to attack, allowing you to go into Sneak mode and attack for 4x to 6x damage, and pickpocket without consequence (except on guards who can catch you if you fail, but still cannot attack you if you resist arrest).