If someone can invent good wheels for shopping carts they'll make tons of money. There's always at least 1 wheel on a cart that wobbles or freezes, imperiling condiments and rutabagas.
They aren't designed to be pushed and turned in trains of 100+ and thats what puts the flat spots and screws them so they wobble. -- When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee