When you give yourself a glass of water, do you run the tap until the water turns cold? If so, you could be wasting up to 2 litres of water in the time it takes for the water to be cold enough.

So this tip is a simple one. Rather than waste water running the tap, just fill up a jug of water and put it in the fridge. Then you’ll always have chilled water when you want it, without the waste.