2 or 3. I forgot to list bread but that costs like £0.45, also that list is only stuff I bought this week, still got oats left from the previous week for example. But I am unlikely to need to buy more cheese next week. Overall it comfortably works out to £20-30 a week, varying a bit depending on more expensive purchases like bulk packs of toilet roll or cheese being among the most expensive single item purchases we have but are not bought most weeks.