In my household its just me and DP

Milk- 2 litres of milk
Bread- 2 loaves of bread (sometimes we dont eat it at all)
Toothpaste- 1 tube a month
Toilet Paper- We get the double length so a 6 pack lasts us a fortnight
Dish washing detergent- a bottle a fortnight
Laundry powder- a box a month
Eggs- a 6 pack maybe a month if he wants brownies lol
Cereal- a box a fortnight (usually weetbix)
Cordial- a bottle a week (DP LOVES his cordial)
Coke- a bottle a day (2 litres and as above *rolls eyes*)
Margarine - a small tub a month (i dont eat it)
Cheese - a block every fortnight
Plus $100 of meat every fortnight and the same on fruit and vegies. We stock up on pantry fillers such as spaghetti, soups, taco stuff, pasta sauce, packet noodles. We get freezer stuff such as frozen vegies, frozen lasagne, wedges, chips, sometimes ice cream or icy poles and whatever else we feel like or is on special. (some of this stuff lasts us a month sometimes 2)