[cynwoody]

One day, we were at Target, and she noticed the kid doing the same (non union) job had a battery powered trolley, that made the process much more efficient.

http://www.youtube.com/watch?v=anyQKXe_e2s

[jttpwalsh]

Yes, the same device. Where my daughter worked, they were limited to five carts, at a time. That video showed well over 50 !