There's quite a bit of just-in-time delivery for grocers. Years ago when I worked at a large supermarket, we only kept stock of items that would reasonably need

There's quite a bit of just-in-time delivery for grocers. Years ago when I worked at a large supermarket, we only kept stock of items that would reasonably need restocked within the next day or so. Things like yogurt, milk, eggs, soda, chips, etc. The majority of the items on the "inner" items (ie not staples) had 0 stock in the back room.