How I do our weekly grocery shop without buying random extras
The extras are never the problem on their own. It is one bag of biltong, one bunch of flowers, one thing the children begged for at the till. By the end of the month it is a meaningful amount of money, and none of it turned into a meal.
Plan five suppers, not seven
Two nights a week are always leftovers, toast, or the plan falling apart. Planning seven meals guarantees you buy food that rots. Five is the number that survives a normal week.
Write the list in aisle order
Not by meal — by the order you walk the shop. You stop doubling back, which is where the unplanned items get picked up.
The trolley fills up in the aisles you walk twice.
Shop once
A second midweek trip for “just milk” reliably costs far more than milk. If something runs out, it goes on next week's list and the week carries on.
Keep a standing list
The ten to fifteen items your house always needs. Print it once, tick what's low, and stop rebuilding the same list every Sunday.
Next step
The Weekly Household Reset has the grocery section built in, alongside the meals and the rest of the week.