If you wish to impress someone on a date, you should practice cleanliness so you are not dirty when you see them.

There are many practices involved in cleanliness, including brushing your teeth and taking regular showers.

My mother is obsessed with cleanliness, constantly cleaning the entire house even though it is already spotless.

While cleanliness is always a good thing, you can irritate your skin if you wash your hands too often.

If there is a contagious illness going around, it is a good idea to practice cleanliness, cleaning away any germs you may have gotten from someone else.