I have a wheeled shopping cart thing (not sure what to really call it, but it’s the standard one). I can only fit some milk and a few things in there, it is no where near as capable as my car. I still use it, since I don’t like driving to the store (we live near 3 big grocery stores, and a soon to be closed city target), and it’s useful for getting snacks to school when it’s my turn, but I don’t see it as a car replacement.