Look at it from as many angles as I can, come up with a good solution by thinking of the outcomes of any solution I can think of. For example: If I move this item or shelf over here to the left, will it be in the way later? Will it cause safety issues? If not, then I move the display, safely, to the new spot. If it is a customer problem and I have tried all known avenues to fix the problem, myself, I seek the help of a supervisor.