What was the biggest challenge you faced in the last job and what was the outcome of how did you resolve the problem? It really all depends on the situation in the day. One thing I can think of is whenever a customer had tried to return an item without a receipt and didn't know whether she purchased it by bank card, gift card or not. And so I was just able to really just look up the items in particular and then see how she purchased it and then was able to go with returning her items.