I get as far away from the item as I can but having it still glow and I 'steal' it. It seems to be a success! No one noticed? On a whim, I go up to the clerk behind his wrap around counter to see if he'd be dumb enough to buy it, or would he notice they were already his and call the guards.
He buys them. For a really good price too, I might add.
Then he puts them back on the shelf. Wait, huh? Could I... do it again? I save. I try it. I do. I save. I try again. I steal again. I sell them back. Again.
Holy crap! You can pretty much steal and sell back the exact same pair of pants repeatedly. And, since you stole them/he "doesn't have any", he gives you a good price each time.
Short on cash? Steal pants!