If you jump on top of a closet,desk,dresser,etc.,you can steal stuff without being caught (if it's in your reach when you are on top of the desk,dresser,closet,etc.)A good example is in balmora in the mage's guild.Go on the very top of the mages guild,you will find Galdabir (however you spell it)a female wood elf.Jump on top of her desk if you have good acrobatics.Once your up on top of her desk, jump to the corner that's touching her desk.Take all her soulgems if she looks at you don't worry keep stealing her soulgems and all the stuff you need.Then jump off.Also save before you do the glitch just in case you get caught or you get stuck.(Note:DON'T SELL GALDIBER ANY OF THE SOULGEMS OR YOU'LL GET YOUR
CRIME REPORTED!)Try it on other stuff if you want.