We ate a lot of foods > We ate a lot of food
We bought some new furnitures > We bought some new furniture.
That’s a useful information > That’s useful information
He gave me some useful advice.
They gave us a lot of information.
Substances: food; water; wine; salt; bread; iron
Activities: help; sleep; travel; work
Abstract ideas: beauty; death; fun; life
Let me give you some advice.
How much luggage have you got?
Let me give you a piece of advice.
That’s a useful piece of equipment.
We bought a few bits of furniture for the new apartment.
but we do not use accommodation, money and traffic in this way.