I make at least trip one trip a week. Why would I need to go every day?
I may stop by a store again during the week for a smaller trip if there's something I really need, or pop to a corner store if I need to grab something like drinks for guests, but it's not out of my way.
It's really not a big deal. Bike panniers can hold a ton.
I've seen what a week's worth of groceries looks like for four people and short of a rickshaw you ain't getting all of that on a bicycle with or without panniers. I'm fairly certain the respondent is coyly ignoring the headcount requirement in my original sneer.
Trivial if you leave near a grocery store. If you live in most US cities, much more the suburbs, then being dependent on your vehicle to do literally anything is part of the problem. In very few places in the US can you choose to do otherwise.