I don't keep tabs on our grocery spending at all. We have 3 kids - 13, 5, 3.I would like to know how people only spend $100 per week on groceries, my soon to be teenage son would eat more than this by himself. Either people are underestimating what they spend, eating out a lot or eating cheap and not particularly well.
My wife and I take our lunches to work every day - I often take whatever is leftover from dinners. Kids have the very occasional lunch-order at school.
We never buy soft drinks or fruit juices. Occasional bottle of cordial. Fruit drinks are squeezed fresh fruit and fruit juice iceblocks.
I can tell you that we shop in this order though; Dandenong Market shop for meat, fish, poultry and fruit and veg every fortnight - total spend is usually around $100-$120. Freeze most of it into meal sized portions.
The rest of the shopping which can't be purchased at the market is at the local Aldi each week; probably about $80-$100.
Last-minute top-ups at the local IGA (closest to home than the other two places) for bread and milk etc if needed - approx $30 per week. We do splurge on good quality bread, and make our own Bodem coffees at home using bulk packet ground coffee.
Total per week for entire shop - around $190-$200.
Call it a blow-out at $250 per week all up...including compulsory wine supplies.