People used to use carts that looked like this: https://www.homedepot.com/p/Milwaukee-Heavy-Duty-Steel-Shopp... though perhaps not as heavy duty.

Quite capable of bringing home a week’s worth of groceries in one go.

If you live within walking distance of a store and don’t like shopping daily, buying your own cart (of a different style/color than the store’s) can be a great deal.