From a New Zealand perspective (British English more often than not):
- Jug. (These are most commonly associated with old fashioned pubs where men would stand around and drink endless small glasses of beer. "Put the jug on" also means to boil water in a kettle. This might be because the shape of kettles has changed to look more like jugs.)
- Packet of sugar. ('Sachet' is used for food and cooking ingredients that you just add water to.)
- A box of cereal. (Generally if I asked someone to buy cereal I would be specific about the brand.)
Others to discuss:
Candy, lollies, sweets.
Restaurant, diner, eatery.
Sockets, outlets, power points.