You should always have a pitcher of water available in the fridge for whenever someone needs a glass of water. There are several reasons for this.
First, it is healthy and each person should drink 8 glasses of water a day.
Second, you will save on using disposable plastic water bottles, since you can reuse your own stainless water bottle instead, or simply use a glass.
Third, anyone drinking water won’t have to leave the tap running for 5 or so seconds until the water runs cooler.
Fourth, you won’t use as many ice cubes for each glass of water, since it will already be cold!
If you go through the jug of water in a day, you can add fruit to flavor the water such as lemon slices, cucumber or berries.