One of the best things about living in a walkable place is that the concept of a weekly shop is basically dead - access to grocery shopping is available enough that I can go as many or as few times to shop as is warranted.
Granted, this usually adds up to once a week or less, but yeah. Big benefit.
This is an important concept to be imparted on those who do not understand the benefits of walkable places - a frequent question is how they can manage to complete their weekly shop without a car, since the car is in their mind needed to transport enough groceries to last the entire week. This is of course necessitated by the fact that their ideal location to shop for groceries is a significant distance away that can only be completed in a practical manner by car.
With where I live, this is unwarranted because I have access to convenient grocery shopping about 200 meters away by foot, and for ideal pricing I go 1 km away on a bike with storage on the rack. I do not want for variety either, I've got multiple speciality shops and 5 different grocery chains within a 1 km radius.