Cheap grocery bags

Why are grocery bags so cheap even though the groceries are heavy?

New shoppers

Everyone has went to a store before, there is no such thing as a new shopper.

Larger size clothes

With so many larger size clothes available at stores rather than smaller sizes, does that mean we should all gain weight?

Big shipping boxes

Why do they ship small items through the mail in big boxes?

One cashier

Why have just one cashier in the supermarket in the morning? What if someone has an entire wagon full and hold up the line?

Express lines

The express line in stores is usually not faster than the regular lines. More people use it, so it takes the same amount of time.