I'm with Mallard, I have carried a small canvas tote bag over my shoulder so it is at my side. That way I can see where it is so as to not bump into anyone when turning. It is good for small items and literature. Since the halls kind of partially surround the parking, I just make a note of where I have parked and make a car stop every so often. Yes, the big purchases get carried out to the car right away.
That said, I love Popi's rendition!!